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Resolve CVE-2023-44487 #16740
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Part of etcd-io#16740 Signed-off-by: Allen Ray <alray@redhat.com>
Part of etcd-io#16740 Signed-off-by: Allen Ray <alray@redhat.com>
Part of etcd-io#16740 Signed-off-by: Allen Ray <alray@redhat.com>
The fix in apiserver seems a little bit more involved than just bumping dependencies: @ahrtr already wrote it down on the OP - sorry! |
Thanks @tjungblu for pointing this out. (I am not an api-server expert) based on the PR, it seems api-server made two changes:
I don't think etcd has similar problems (note K8s doesn't enable auth at all). Another thing... I noticed that Kubernetes hasn't bumped grpc-go version yet (note latest grpc-go versions have fix to CVE-2023-44487), I guess probably it's because api-server doesn't start grpc server at all. |
Just took a quick peak at the gRPC dependency upgrade history on the difference of 3.4 and 3.5:
I think goal will be let 3.4 catch up with 3.5 first, ignore other unrelated dependency upgrade and eventually upgrade to Is there any major call outs this upgrade could potentially break 3.4 release? @ahrtr @serathius @fuweid |
I am good as long as eventually we can resolve the CVE for both 3.5 and 3.4.
No immediate call out in my head for now. We can have more discussion if we run into any issue during the upgrade. thx |
Just quick bump the version in my local for v3.4. It might introduce other changes, such as #12675. We might need to try to bump and get the changes result and then evaluate it. |
https://github.com/grpc/grpc-go/releases/tag/v1.30.0
I guess we have to check in #12675 and #12671 in release-3.4 in order to bump up gRPC-go version instead of forking the gRPC usage in another release branch to fix the CVE. |
OK, then we have to backport #12675 to 3.4 in order to bum grpc-go version
Is there a simple solution to just replace the removed |
I need to investigate more to fully understand before adapting any code changes to the release.34 client based on the gRPC update since Based on #12124 (comment) and #12652, if we still maintain release-3.4 for a prolonged time, it will bite us again since it's forked. |
…lease-2.8.x) (#10891) [![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com) This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | golang.org/x/net | indirect | minor | `v0.7.0` -> `v0.17.0` | --- ### Improper rendering of text nodes in golang.org/x/net/html [CVE-2023-3978](https://nvd.nist.gov/vuln/detail/CVE-2023-3978) / [GHSA-2wrh-6pvc-2jm9](https://togithub.com/advisories/GHSA-2wrh-6pvc-2jm9) <details> <summary>More information</summary> #### Details Text nodes not in the HTML namespace are incorrectly literally rendered, causing text which should be escaped to not be. This could lead to an XSS attack. #### Severity - CVSS Score: 6.1 / 10 (Medium) - Vector String: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N` #### References - [https://nvd.nist.gov/vuln/detail/CVE-2023-3978](https://nvd.nist.gov/vuln/detail/CVE-2023-3978) - [https://go.dev/cl/514896](https://go.dev/cl/514896) - [https://go.dev/issue/61615](https://go.dev/issue/61615) - [https://pkg.go.dev/vuln/GO-2023-1988](https://pkg.go.dev/vuln/GO-2023-1988) This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-2wrh-6pvc-2jm9) and the [GitHub Advisory Database](https://togithub.com/github/advisory-database) ([CC-BY 4.0](https://togithub.com/github/advisory-database/blob/main/LICENSE.md)). </details> --- ### Improper rendering of text nodes in golang.org/x/net/html [CVE-2023-3978](https://nvd.nist.gov/vuln/detail/CVE-2023-3978) / [GHSA-2wrh-6pvc-2jm9](https://togithub.com/advisories/GHSA-2wrh-6pvc-2jm9) / [GO-2023-1988](https://pkg.go.dev/vuln/GO-2023-1988) <details> <summary>More information</summary> #### Details Text nodes not in the HTML namespace are incorrectly literally rendered, causing text which should be escaped to not be. This could lead to an XSS attack. #### Severity Unknown #### References - [https://go.dev/issue/61615](https://go.dev/issue/61615) - [https://go.dev/cl/514896](https://go.dev/cl/514896) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2023-1988) and the [Go Vulnerability Database](https://togithub.com/golang/vulndb) ([CC-BY 4.0](https://togithub.com/golang/vulndb#license)). </details> --- ### swift-nio-http2 vulnerable to HTTP/2 Stream Cancellation Attack [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487) / [GHSA-qppj-fm5r-hxr3](https://togithub.com/advisories/GHSA-qppj-fm5r-hxr3) <details> <summary>More information</summary> #### Details swift-nio-http2 is vulnerable to a denial-of-service vulnerability in which a malicious client can create and then reset a large number of HTTP/2 streams in a short period of time. This causes swift-nio-http2 to commit to a large amount of expensive work which it then throws away, including creating entirely new `Channel`s to serve the traffic. This can easily overwhelm an `EventLoop` and prevent it from making forward progress. swift-nio-http2 1.28 contains a remediation for this issue that applies reset counter using a sliding window. This constrains the number of stream resets that may occur in a given window of time. Clients violating this limit will have their connections torn down. This allows clients to continue to cancel streams for legitimate reasons, while constraining malicious actors. #### Severity - CVSS Score: 5.3 / 10 (Medium) - Vector String: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L` #### References - [https://github.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3](https://togithub.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3) - [https://github.com/h2o/h2o/security/advisories/GHSA-2m7v-gc89-fjqf](https://togithub.com/h2o/h2o/security/advisories/GHSA-2m7v-gc89-fjqf) - [https://nvd.nist.gov/vuln/detail/CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487) - [https://github.com/Azure/AKS/issues/3947](https://togithub.com/Azure/AKS/issues/3947) - [https://github.com/akka/akka-http/issues/4323](https://togithub.com/akka/akka-http/issues/4323) - [https://github.com/alibaba/tengine/issues/1872](https://togithub.com/alibaba/tengine/issues/1872) - [https://github.com/apache/apisix/issues/10320](https://togithub.com/apache/apisix/issues/10320) - [https://github.com/caddyserver/caddy/issues/5877](https://togithub.com/caddyserver/caddy/issues/5877) - [https://github.com/dotnet/announcements/issues/277](https://togithub.com/dotnet/announcements/issues/277) - [https://github.com/eclipse/jetty.project/issues/10679](https://togithub.com/eclipse/jetty.project/issues/10679) - [https://github.com/etcd-io/etcd/issues/16740](https://togithub.com/etcd-io/etcd/issues/16740) - [https://github.com/golang/go/issues/63417](https://togithub.com/golang/go/issues/63417) - [https://github.com/haproxy/haproxy/issues/2312](https://togithub.com/haproxy/haproxy/issues/2312) - [https://github.com/hyperium/hyper/issues/3337](https://togithub.com/hyperium/hyper/issues/3337) - [https://github.com/junkurihara/rust-rpxy/issues/97](https://togithub.com/junkurihara/rust-rpxy/issues/97) - [https://github.com/kazu-yamamoto/http2/issues/93](https://togithub.com/kazu-yamamoto/http2/issues/93) - [https://github.com/ninenines/cowboy/issues/1615](https://togithub.com/ninenines/cowboy/issues/1615) - [https://github.com/openresty/openresty/issues/930](https://togithub.com/openresty/openresty/issues/930) - [https://github.com/opensearch-project/data-prepper/issues/3474](https://togithub.com/opensearch-project/data-prepper/issues/3474) - [https://github.com/tempesta-tech/tempesta/issues/1986](https://togithub.com/tempesta-tech/tempesta/issues/1986) - [https://github.com/varnishcache/varnish-cache/issues/3996](https://togithub.com/varnishcache/varnish-cache/issues/3996) - [https://github.com/apache/httpd-site/pull/10](https://togithub.com/apache/httpd-site/pull/10) - [https://github.com/apache/trafficserver/pull/10564](https://togithub.com/apache/trafficserver/pull/10564) - [https://github.com/envoyproxy/envoy/pull/30055](https://togithub.com/envoyproxy/envoy/pull/30055) - [https://github.com/facebook/proxygen/pull/466](https://togithub.com/facebook/proxygen/pull/466) - [https://github.com/grpc/grpc-go/pull/6703](https://togithub.com/grpc/grpc-go/pull/6703) - [https://github.com/h2o/h2o/pull/3291](https://togithub.com/h2o/h2o/pull/3291) - [https://github.com/kubernetes/kubernetes/pull/121120](https://togithub.com/kubernetes/kubernetes/pull/121120) - [https://github.com/line/armeria/pull/5232](https://togithub.com/line/armeria/pull/5232) - [https://github.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632](https://togithub.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632) - [https://github.com/microsoft/CBL-Mariner/pull/6381](https://togithub.com/microsoft/CBL-Mariner/pull/6381) - [https://github.com/nghttp2/nghttp2/pull/1961](https://togithub.com/nghttp2/nghttp2/pull/1961) - [https://github.com/nodejs/node/pull/50121](https://togithub.com/nodejs/node/pull/50121) - [https://github.com/projectcontour/contour/pull/5826](https://togithub.com/projectcontour/contour/pull/5826) - [https://github.com/kazu-yamamoto/http2/commit/f61d41a502bd0f60eb24e1ce14edc7b6df6722a1](https://togithub.com/kazu-yamamoto/http2/commit/f61d41a502bd0f60eb24e1ce14edc7b6df6722a1) - [https://github.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61](https://togithub.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61) - [https://access.redhat.com/security/cve/cve-2023-44487](https://access.redhat.com/security/cve/cve-2023-44487) - [https://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/](https://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/) - [https://aws.amazon.com/security/security-bulletins/AWS-2023-011/](https://aws.amazon.com/security/security-bulletins/AWS-2023-011/) - [https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/](https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/) - [https://blog.cloudflare.com/zero-day-rapid-reset-http2-record-breaking-ddos-attack/](https://blog.cloudflare.com/zero-day-rapid-reset-http2-record-breaking-ddos-attack/) - [https://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/](https://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/) - [https://blog.qualys.com/vulnerabilities-threat-research/2023/10/10/cve-2023-44487-http-2-rapid-reset-attack](https://blog.qualys.com/vulnerabilities-threat-research/2023/10/10/cve-2023-44487-http-2-rapid-reset-attack) - [https://blog.vespa.ai/cve-2023-44487/](https://blog.vespa.ai/cve-2023-44487/) - [https://bugzilla.proxmox.com/show_bug.cgi?id=4988](https://bugzilla.proxmox.com/show_bug.cgi?id=4988) - [https://bugzilla.redhat.com/show_bug.cgi?id=2242803](https://bugzilla.redhat.com/show_bug.cgi?id=2242803) - [https://bugzilla.suse.com/show_bug.cgi?id=1216123](https://bugzilla.suse.com/show_bug.cgi?id=1216123) - [https://cgit.freebsd.org/ports/commit/?id=c64c329c2c1752f46b73e3e6ce9f4329be6629f9](https://cgit.freebsd.org/ports/commit/?id=c64c329c2c1752f46b73e3e6ce9f4329be6629f9) - [https://chaos.social/@​icing/111210915918780532](https://chaos.social/@​icing/111210915918780532) - [https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/](https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/) - [https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack](https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack) - [https://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125](https://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125) - [https://edg.io/lp/blog/resets-leaks-ddos-and-the-tale-of-a-hidden-cve](https://edg.io/lp/blog/resets-leaks-ddos-and-the-tale-of-a-hidden-cve) - [https://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764](https://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764) - [https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088](https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088) - [https://github.com/Kong/kong/discussions/11741](https://togithub.com/Kong/kong/discussions/11741) - [https://github.com/advisories/GHSA-qppj-fm5r-hxr3](https://togithub.com/advisories/GHSA-qppj-fm5r-hxr3) - [https://github.com/advisories/GHSA-vx74-f528-fxqg](https://togithub.com/advisories/GHSA-vx74-f528-fxqg) - [https://github.com/advisories/GHSA-xpw8-rcwv-8f8p](https://togithub.com/advisories/GHSA-xpw8-rcwv-8f8p) - [https://github.com/apache/httpd/blob/afcdbeebbff4b0c50ea26cdd16e178c0d1f24152/modules/http2/h2_mplx.c#L1101-L1113](https://togithub.com/apache/httpd/blob/afcdbeebbff4b0c50ea26cdd16e178c0d1f24152/modules/http2/h2_mplx.c#L1101-L1113) - [https://github.com/apache/tomcat/tree/main/java/org/apache/coyote/http2](https://togithub.com/apache/tomcat/tree/main/java/org/apache/coyote/http2) - [https://github.com/apple/swift-nio-http2](https://togithub.com/apple/swift-nio-http2) - [https://github.com/arkrwn/PoC/tree/main/CVE-2023-44487](https://togithub.com/arkrwn/PoC/tree/main/CVE-2023-44487) - [https://github.com/bcdannyboy/CVE-2023-44487](https://togithub.com/bcdannyboy/CVE-2023-44487) - [https://github.com/caddyserver/caddy/releases/tag/v2.7.5](https://togithub.com/caddyserver/caddy/releases/tag/v2.7.5) - [https://github.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73](https://togithub.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73) - [https://github.com/icing/mod_h2/blob/0a864782af0a942aa2ad4ed960a6b32cd35bcf0a/mod_http2/README.md?plain=1#L239-L244](https://togithub.com/icing/mod_h2/blob/0a864782af0a942aa2ad4ed960a6b32cd35bcf0a/mod_http2/README.md?plain=1#L239-L244) - [https://github.com/micrictor/http2-rst-stream](https://togithub.com/micrictor/http2-rst-stream) - [https://github.com/nghttp2/nghttp2/releases/tag/v1.57.0](https://togithub.com/nghttp2/nghttp2/releases/tag/v1.57.0) - [https://github.com/oqtane/oqtane.framework/discussions/3367](https://togithub.com/oqtane/oqtane.framework/discussions/3367) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) - [https://istio.io/latest/news/security/istio-security-2023-004/](https://istio.io/latest/news/security/istio-security-2023-004/) - [https://linkerd.io/2023/10/12/linkerd-cve-2023-44487/](https://linkerd.io/2023/10/12/linkerd-cve-2023-44487/) - [https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q](https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/) - [https://lists.w3.org/Archives/Public/ietf-http-wg/2023OctDec/0025.html](https://lists.w3.org/Archives/Public/ietf-http-wg/2023OctDec/0025.html) - [https://mailman.nginx.org/pipermail/nginx-devel/2023-October/S36Q5HBXR7CAIMPLLPRSSSYR4PCMWILK.html](https://mailman.nginx.org/pipermail/nginx-devel/2023-October/S36Q5HBXR7CAIMPLLPRSSSYR4PCMWILK.html) - [https://martinthomson.github.io/h2-stream-limits/draft-thomson-httpbis-h2-stream-limits.html](https://martinthomson.github.io/h2-stream-limits/draft-thomson-httpbis-h2-stream-limits.html) - [https://msrc.microsoft.com/blog/2023/10/microsoft-response-to-distributed-denial-of-service-ddos-attacks-against-http/2/](https://msrc.microsoft.com/blog/2023/10/microsoft-response-to-distributed-denial-of-service-ddos-attacks-against-http/2/) - [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-44487](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-44487) - [https://my.f5.com/manage/s/article/K000137106](https://my.f5.com/manage/s/article/K000137106) - [https://netty.io/news/2023/10/10/4-1-100-Final.html](https://netty.io/news/2023/10/10/4-1-100-Final.html) - [https://news.ycombinator.com/item?id=37830987](https://news.ycombinator.com/item?id=37830987) - [https://news.ycombinator.com/item?id=37830998](https://news.ycombinator.com/item?id=37830998) - [https://news.ycombinator.com/item?id=37831062](https://news.ycombinator.com/item?id=37831062) - [https://news.ycombinator.com/item?id=37837043](https://news.ycombinator.com/item?id=37837043) - [https://openssf.org/blog/2023/10/10/http-2-rapid-reset-vulnerability-highlights-need-for-rapid-response/](https://openssf.org/blog/2023/10/10/http-2-rapid-reset-vulnerability-highlights-need-for-rapid-response/) - [https://seanmonstar.com/post/730794151136935936/hyper-http2-rapid-reset-unaffected](https://seanmonstar.com/post/730794151136935936/hyper-http2-rapid-reset-unaffected) - [https://security.netapp.com/advisory/ntap-20231016-0001/](https://security.netapp.com/advisory/ntap-20231016-0001/) - [https://security.paloaltonetworks.com/CVE-2023-44487](https://security.paloaltonetworks.com/CVE-2023-44487) - [https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.14](https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.14) - [https://ubuntu.com/security/CVE-2023-44487](https://ubuntu.com/security/CVE-2023-44487) - [https://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/](https://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/) - [https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487](https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487) - [https://www.darkreading.com/cloud/internet-wide-zero-day-bug-fuels-largest-ever-ddos-event](https://www.darkreading.com/cloud/internet-wide-zero-day-bug-fuels-largest-ever-ddos-event) - [https://www.debian.org/security/2023/dsa-5521](https://www.debian.org/security/2023/dsa-5521) - [https://www.debian.org/security/2023/dsa-5522](https://www.debian.org/security/2023/dsa-5522) - [https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487](https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487) - [https://www.netlify.com/blog/netlify-successfully-mitigates-cve-2023-44487/](https://www.netlify.com/blog/netlify-successfully-mitigates-cve-2023-44487/) - [https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/](https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/) - [https://www.openwall.com/lists/oss-security/2023/10/10/6](https://www.openwall.com/lists/oss-security/2023/10/10/6) - [https://www.phoronix.com/news/HTTP2-Rapid-Reset-Attack](https://www.phoronix.com/news/HTTP2-Rapid-Reset-Attack) - [https://www.theregister.com/2023/10/10/http2_rapid_reset_zeroday/](https://www.theregister.com/2023/10/10/http2_rapid_reset_zeroday/) - [http://www.openwall.com/lists/oss-security/2023/10/13/4](http://www.openwall.com/lists/oss-security/2023/10/13/4) - [http://www.openwall.com/lists/oss-security/2023/10/13/9](http://www.openwall.com/lists/oss-security/2023/10/13/9) This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-qppj-fm5r-hxr3) and the [GitHub Advisory Database](https://togithub.com/github/advisory-database) ([CC-BY 4.0](https://togithub.com/github/advisory-database/blob/main/LICENSE.md)). </details> --- ### HTTP/2 rapid reset can cause excessive work in net/http [CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) / [GHSA-4374-p667-p6c8](https://togithub.com/advisories/GHSA-4374-p667-p6c8) <details> <summary>More information</summary> #### Details A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function. #### Severity Moderate #### References - [https://nvd.nist.gov/vuln/detail/CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) - [https://github.com/golang/go/issues/63417](https://togithub.com/golang/go/issues/63417) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) - [https://pkg.go.dev/vuln/GO-2023-2102](https://pkg.go.dev/vuln/GO-2023-2102) - [golang.org/x/net](golang.org/x/net) This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-4374-p667-p6c8) and the [GitHub Advisory Database](https://togithub.com/github/advisory-database) ([CC-BY 4.0](https://togithub.com/github/advisory-database/blob/main/LICENSE.md)). </details> --- ### HTTP/2 rapid reset can cause excessive work in net/http [CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) / [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487) / [GHSA-4374-p667-p6c8](https://togithub.com/advisories/GHSA-4374-p667-p6c8) / [GO-2023-2102](https://pkg.go.dev/vuln/GO-2023-2102) <details> <summary>More information</summary> #### Details A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function. #### Severity Unknown #### References - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2023-2102) and the [Go Vulnerability Database](https://togithub.com/golang/vulndb) ([CC-BY 4.0](https://togithub.com/golang/vulndb#license)). </details> --- ### Configuration 📅 **Schedule**: Branch creation - "" (UTC), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/grafana/loki). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy44LjEiLCJ1cGRhdGVkSW5WZXIiOiIzNy4xOS4yIiwidGFyZ2V0QnJhbmNoIjoicmVsZWFzZS0yLjgueCJ9--> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
This one seems easy to fix. We just need to replace the API with new type input.
But for the balancer v2 API, grpc/grpc-go#3431 has changed the I try to backport the following pull requests in my local (without test code and testing) and then with their changes, we can bump grpc to v1.52.0 easier. However, each change needs more eyes to check it.
|
The last step to resolve CVE etcd-io#16740 in 3.5 Signed-off-by: Chao Chen <chaochn@amazon.com>
Was there something specific you wanted information about? Generally speaking, that CVE isn't very important if you are only handling traffic from trusted clients. In other circumstances, we would highly recommend using a frontend for (D)DOS protection/etc, which could also be used to mitigate that CVE. That said, 1.26 is very old, and I'd highly recommend upgrading versions on a far more frequent basis to get other bug and security fixes. |
I did some basic http2 DOS testing against 19bf472, etcd held up well against a single connection, but would still consume 5+ GB of RAM (and basically all the CPU on my machine) once I upped the connection count to ~25. The attacking client was using less than 75% of a single core and less than 150 MB of RAM. I could have trivially bumped the connection count number until etcd OOM'd. |
Basically a |
The majority of operators we had fix this CVE by downgrading to http/1 when unauthenticated, think of health probes and metrics endpoints. |
Somehow I did not reproduce the issue you described. I used Jmeter to create 100 concurrent threads(users), and kept sending Note there is 32G memory in total and 10 Cores in my local environment. There was still some idle CPU and unused memory during the test. Would you mind share your detailed steps? |
It seems there isn't much we can do in etcd. Also Kubernetes only accesses etcd via gRPC instead of HTTP. K8s/kubelet only accesses the See Lines 353 to 380 in 19bf472
and (note: the Lines 287 to 339 in 19bf472
|
Unfortunately I cannot share exploit code. You can see if something like https://github.com/secengjeff/rapidresetclient helps to reproduce the issue better, but the approach you are taking is not sufficient.
You can tear down unauthenticated http2 connections in the same way as kubernetes/kubernetes#121120. This will allow you to keep http2 enabled without being at risk from DOS (the assumption being that an authenticated attacker will be more interested in reading the contents of etcd instead of DOS). |
Yes, it's much better now, but it still can't reproduce the situation you mentioned. It could increase the cpu usage to around 600%, and memory to 2GB+ with 100 concurrently connections, and each kept sending HEADER and RST_STREAM.
If I understood it correctly, K8s depends on the Authorization header to identify unauthenticated connections. Note that K8s doesn't enable etcd's auth, and there is no But etcd supports verify client's certificate. Please add flag |
A more robust exploit will work far better than that repo. You should assume the worse case is easily 10x-1000x what you see from that tool.
No, Kube supports many different forms of auth, including cert based auth. But they are all resolved via the
Kube's usage of etcd isn't really relevant because etcd isn't exposed to external users in the Kube scenario.
Yeah, this will prevent the issue because it stops the TLS connection from starting in the first place, so no http2 based attack can be attempted. This should be the documented recommendation to limit abuse of http2 for unauthenticated clients. You will have to decide if you want to do anything further to limit authenticated clients (and I do not know if there exist environments where setting |
YES, it also ran out of the CPU & memory after removing the sleep between sending HEADER and RST_STREAM. For anyone reference, this is my rafactored version main.go. Starting etcd with command below,
Run the DoS test,
Agreed. But it should not be a big problem. Usually etcd isn't a public service, In K8s use case, etcd is supposed to be only accessed by apiserver. In Non-K8s use case, etcd should run behind a loadbalancer. But anyway, agree to update doc.
I suppose it (disabling client cert authentication) is only useful in dev or test environment. In TKG, it's enabled by default. @tjungblu @chaochn47 @fuweid @serathius Could you feedback whether Openshift, EKS, AKS and GKE enable |
Based on https://github.com/openshift/cluster-etcd-operator/blob/a060517d1452b3756b230de1d1393e3573de4f45/docs/etcd-tls-assets.md?plain=1#L349 yes OpenShift has |
Yes, GKE enables |
Yes, AKS enables |
Thanks all for the feedback and help. This big task should have been resolved. |
Oops, we haven't bumped grpc-go version yet:( |
All done! |
Thanks all again, especially @chaochn47 and @fuweid ! |
This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | golang.org/x/net | `v0.13.0` -> `v0.17.0` | [![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fnet/v0.17.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/go/golang.org%2fx%2fnet/v0.17.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/go/golang.org%2fx%2fnet/v0.13.0/v0.17.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2fnet/v0.13.0/v0.17.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | ### GitHub Vulnerability Alerts #### [CVE-2023-39325](https://togithub.com/golang/go/issues/63417) A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function. #### [CVE-2023-44487](https://togithub.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3) ## HTTP/2 Rapid reset attack The HTTP/2 protocol allows clients to indicate to the server that a previous stream should be canceled by sending a RST_STREAM frame. The protocol does not require the client and server to coordinate the cancellation in any way, the client may do it unilaterally. The client may also assume that the cancellation will take effect immediately when the server receives the RST_STREAM frame, before any other data from that TCP connection is processed. Abuse of this feature is called a Rapid Reset attack because it relies on the ability for an endpoint to send a RST_STREAM frame immediately after sending a request frame, which makes the other endpoint start working and then rapidly resets the request. The request is canceled, but leaves the HTTP/2 connection open. The HTTP/2 Rapid Reset attack built on this capability is simple: The client opens a large number of streams at once as in the standard HTTP/2 attack, but rather than waiting for a response to each request stream from the server or proxy, the client cancels each request immediately. The ability to reset streams immediately allows each connection to have an indefinite number of requests in flight. By explicitly canceling the requests, the attacker never exceeds the limit on the number of concurrent open streams. The number of in-flight requests is no longer dependent on the round-trip time (RTT), but only on the available network bandwidth. In a typical HTTP/2 server implementation, the server will still have to do significant amounts of work for canceled requests, such as allocating new stream data structures, parsing the query and doing header decompression, and mapping the URL to a resource. For reverse proxy implementations, the request may be proxied to the backend server before the RST_STREAM frame is processed. The client on the other hand paid almost no costs for sending the requests. This creates an exploitable cost asymmetry between the server and the client. Multiple software artifacts implementing HTTP/2 are affected. This advisory was originally ingested from the `swift-nio-http2` repo advisory and their original conent follows. ## swift-nio-http2 specific advisory swift-nio-http2 is vulnerable to a denial-of-service vulnerability in which a malicious client can create and then reset a large number of HTTP/2 streams in a short period of time. This causes swift-nio-http2 to commit to a large amount of expensive work which it then throws away, including creating entirely new `Channel`s to serve the traffic. This can easily overwhelm an `EventLoop` and prevent it from making forward progress. swift-nio-http2 1.28 contains a remediation for this issue that applies reset counter using a sliding window. This constrains the number of stream resets that may occur in a given window of time. Clients violating this limit will have their connections torn down. This allows clients to continue to cancel streams for legitimate reasons, while constraining malicious actors. --- ### HTTP/2 rapid reset can cause excessive work in net/http BIT-golang-2023-39325 / [CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) / [GHSA-4374-p667-p6c8](https://togithub.com/advisories/GHSA-4374-p667-p6c8) / [GO-2023-2102](https://pkg.go.dev/vuln/GO-2023-2102) <details> <summary>More information</summary> #### Details A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function. #### Severity - CVSS Score: 7.5 / 10 (High) - Vector String: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H` #### References - [https://nvd.nist.gov/vuln/detail/CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) - [https://github.com/golang/go/issues/63417](https://togithub.com/golang/go/issues/63417) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SZN67IL7HMGMNAVLOTIXLIHUDXZK4LH/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SZN67IL7HMGMNAVLOTIXLIHUDXZK4LH/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVZDNSMVDAQJ64LJC5I5U5LDM5753647/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVZDNSMVDAQJ64LJC5I5U5LDM5753647/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2BBIDR2ZMB3X5BC7SR4SLQMHRMVPY6L/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2BBIDR2ZMB3X5BC7SR4SLQMHRMVPY6L/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ECRC75BQJP6FJN2L7KCKYZW4DSBD7QSD/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ECRC75BQJP6FJN2L7KCKYZW4DSBD7QSD/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSY7SXFFTPZFWDM6XELSDSHZLVW3AHK7/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSY7SXFFTPZFWDM6XELSDSHZLVW3AHK7/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HZQIELEIRSZUYTFFH5KTH2YJ4IIQG2KE/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HZQIELEIRSZUYTFFH5KTH2YJ4IIQG2KE/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NG7IMPL55MVWU3LCI4JQJT3K2U5CHDV7/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NG7IMPL55MVWU3LCI4JQJT3K2U5CHDV7/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OXGWPQOJ3JNDW2XIYKIVJ7N7QUIFNM2Q/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OXGWPQOJ3JNDW2XIYKIVJ7N7QUIFNM2Q/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QF5QSYAOPDOWLY6DUHID56Q4HQFYB45I/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QF5QSYAOPDOWLY6DUHID56Q4HQFYB45I/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R3UETKPUB3V5JS5TLZOF3SMTGT5K5APS/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R3UETKPUB3V5JS5TLZOF3SMTGT5K5APS/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ULQQONMSCQSH5Z5OWFFQHCGEZ3NL4DRJ/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ULQQONMSCQSH5Z5OWFFQHCGEZ3NL4DRJ/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTT7DG3QOF5ZNJLUGHDNLRUIN6OWZARP/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTT7DG3QOF5ZNJLUGHDNLRUIN6OWZARP/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCNCBYKZXLDFGAJUB7ZP5VLC3YTHJNVH/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCNCBYKZXLDFGAJUB7ZP5VLC3YTHJNVH/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XTNLSL44Y5FB6JWADSZH6DCV4JJAAEQY/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XTNLSL44Y5FB6JWADSZH6DCV4JJAAEQY/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YRKEXKANQ7BKJW2YTAMP625LJUJZLJ4P/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YRKEXKANQ7BKJW2YTAMP625LJUJZLJ4P/) - [https://pkg.go.dev/vuln/GO-2023-2102](https://pkg.go.dev/vuln/GO-2023-2102) - [https://security.gentoo.org/glsa/202311-09](https://security.gentoo.org/glsa/202311-09) - [https://security.netapp.com/advisory/ntap-20231110-0008/](https://security.netapp.com/advisory/ntap-20231110-0008/) - [golang.org/x/net](golang.org/x/net) This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-4374-p667-p6c8) and the [GitHub Advisory Database](https://togithub.com/github/advisory-database) ([CC-BY 4.0](https://togithub.com/github/advisory-database/blob/main/LICENSE.md)). </details> --- ### HTTP/2 rapid reset can cause excessive work in net/http BIT-golang-2023-39325 / [CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) / [GHSA-4374-p667-p6c8](https://togithub.com/advisories/GHSA-4374-p667-p6c8) / [GO-2023-2102](https://pkg.go.dev/vuln/GO-2023-2102) <details> <summary>More information</summary> #### Details A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function. #### Severity Unknown #### References - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2023-2102) and the [Go Vulnerability Database](https://togithub.com/golang/vulndb) ([CC-BY 4.0](https://togithub.com/golang/vulndb#license)). </details> --- ### HTTP/2 Stream Cancellation Attack BIT-apisix-2023-44487 / BIT-aspnet-core-2023-44487 / BIT-contour-2023-44487 / BIT-dotnet-2023-44487 / BIT-dotnet-sdk-2023-44487 / BIT-envoy-2023-44487 / BIT-golang-2023-44487 / BIT-jenkins-2023-44487 / BIT-kong-2023-44487 / BIT-nginx-2023-44487 / BIT-nginx-ingress-controller-2023-44487 / BIT-node-2023-44487 / BIT-solr-2023-44487 / BIT-tomcat-2023-44487 / BIT-varnish-2023-44487 / [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487) / [GHSA-2m7v-gc89-fjqf](https://togithub.com/advisories/GHSA-2m7v-gc89-fjqf) / [GHSA-qppj-fm5r-hxr3](https://togithub.com/advisories/GHSA-qppj-fm5r-hxr3) / [GHSA-vx74-f528-fxqg](https://togithub.com/advisories/GHSA-vx74-f528-fxqg) / [GHSA-xpw8-rcwv-8f8p](https://togithub.com/advisories/GHSA-xpw8-rcwv-8f8p) <details> <summary>More information</summary> #### Details ##### HTTP/2 Rapid reset attack The HTTP/2 protocol allows clients to indicate to the server that a previous stream should be canceled by sending a RST_STREAM frame. The protocol does not require the client and server to coordinate the cancellation in any way, the client may do it unilaterally. The client may also assume that the cancellation will take effect immediately when the server receives the RST_STREAM frame, before any other data from that TCP connection is processed. Abuse of this feature is called a Rapid Reset attack because it relies on the ability for an endpoint to send a RST_STREAM frame immediately after sending a request frame, which makes the other endpoint start working and then rapidly resets the request. The request is canceled, but leaves the HTTP/2 connection open. The HTTP/2 Rapid Reset attack built on this capability is simple: The client opens a large number of streams at once as in the standard HTTP/2 attack, but rather than waiting for a response to each request stream from the server or proxy, the client cancels each request immediately. The ability to reset streams immediately allows each connection to have an indefinite number of requests in flight. By explicitly canceling the requests, the attacker never exceeds the limit on the number of concurrent open streams. The number of in-flight requests is no longer dependent on the round-trip time (RTT), but only on the available network bandwidth. In a typical HTTP/2 server implementation, the server will still have to do significant amounts of work for canceled requests, such as allocating new stream data structures, parsing the query and doing header decompression, and mapping the URL to a resource. For reverse proxy implementations, the request may be proxied to the backend server before the RST_STREAM frame is processed. The client on the other hand paid almost no costs for sending the requests. This creates an exploitable cost asymmetry between the server and the client. Multiple software artifacts implementing HTTP/2 are affected. This advisory was originally ingested from the `swift-nio-http2` repo advisory and their original conent follows. ##### swift-nio-http2 specific advisory swift-nio-http2 is vulnerable to a denial-of-service vulnerability in which a malicious client can create and then reset a large number of HTTP/2 streams in a short period of time. This causes swift-nio-http2 to commit to a large amount of expensive work which it then throws away, including creating entirely new `Channel`s to serve the traffic. This can easily overwhelm an `EventLoop` and prevent it from making forward progress. swift-nio-http2 1.28 contains a remediation for this issue that applies reset counter using a sliding window. This constrains the number of stream resets that may occur in a given window of time. Clients violating this limit will have their connections torn down. This allows clients to continue to cancel streams for legitimate reasons, while constraining malicious actors. #### Severity - CVSS Score: 5.3 / 10 (Medium) - Vector String: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L` #### References - [https://github.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3](https://togithub.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3) - [https://github.com/h2o/h2o/security/advisories/GHSA-2m7v-gc89-fjqf](https://togithub.com/h2o/h2o/security/advisories/GHSA-2m7v-gc89-fjqf) - [https://nvd.nist.gov/vuln/detail/CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487) - [https://github.com/Azure/AKS/issues/3947](https://togithub.com/Azure/AKS/issues/3947) - [https://github.com/akka/akka-http/issues/4323](https://togithub.com/akka/akka-http/issues/4323) - [https://github.com/alibaba/tengine/issues/1872](https://togithub.com/alibaba/tengine/issues/1872) - [https://github.com/apache/apisix/issues/10320](https://togithub.com/apache/apisix/issues/10320) - [https://github.com/caddyserver/caddy/issues/5877](https://togithub.com/caddyserver/caddy/issues/5877) - [https://github.com/dotnet/announcements/issues/277](https://togithub.com/dotnet/announcements/issues/277) - [https://github.com/eclipse/jetty.project/issues/10679](https://togithub.com/eclipse/jetty.project/issues/10679) - [https://github.com/etcd-io/etcd/issues/16740](https://togithub.com/etcd-io/etcd/issues/16740) - [https://github.com/golang/go/issues/63417](https://togithub.com/golang/go/issues/63417) - [https://github.com/haproxy/haproxy/issues/2312](https://togithub.com/haproxy/haproxy/issues/2312) - [https://github.com/hyperium/hyper/issues/3337](https://togithub.com/hyperium/hyper/issues/3337) - [https://github.com/junkurihara/rust-rpxy/issues/97](https://togithub.com/junkurihara/rust-rpxy/issues/97) - [https://github.com/kazu-yamamoto/http2/issues/93](https://togithub.com/kazu-yamamoto/http2/issues/93) - [https://github.com/ninenines/cowboy/issues/1615](https://togithub.com/ninenines/cowboy/issues/1615) - [https://github.com/openresty/openresty/issues/930](https://togithub.com/openresty/openresty/issues/930) - [https://github.com/opensearch-project/data-prepper/issues/3474](https://togithub.com/opensearch-project/data-prepper/issues/3474) - [https://github.com/tempesta-tech/tempesta/issues/1986](https://togithub.com/tempesta-tech/tempesta/issues/1986) - [https://github.com/varnishcache/varnish-cache/issues/3996](https://togithub.com/varnishcache/varnish-cache/issues/3996) - [https://github.com/apache/httpd-site/pull/10](https://togithub.com/apache/httpd-site/pull/10) - [https://github.com/apache/trafficserver/pull/10564](https://togithub.com/apache/trafficserver/pull/10564) - [https://github.com/envoyproxy/envoy/pull/30055](https://togithub.com/envoyproxy/envoy/pull/30055) - [https://github.com/facebook/proxygen/pull/466](https://togithub.com/facebook/proxygen/pull/466) - [https://github.com/grpc/grpc-go/pull/6703](https://togithub.com/grpc/grpc-go/pull/6703) - [https://github.com/h2o/h2o/pull/3291](https://togithub.com/h2o/h2o/pull/3291) - [https://github.com/kubernetes/kubernetes/pull/121120](https://togithub.com/kubernetes/kubernetes/pull/121120) - [https://github.com/line/armeria/pull/5232](https://togithub.com/line/armeria/pull/5232) - [https://github.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632](https://togithub.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632) - [https://github.com/microsoft/CBL-Mariner/pull/6381](https://togithub.com/microsoft/CBL-Mariner/pull/6381) - [https://github.com/nghttp2/nghttp2/pull/1961](https://togithub.com/nghttp2/nghttp2/pull/1961) - [https://github.com/nodejs/node/pull/50121](https://togithub.com/nodejs/node/pull/50121) - [https://github.com/projectcontour/contour/pull/5826](https://togithub.com/projectcontour/contour/pull/5826) - [https://github.com/kazu-yamamoto/http2/commit/f61d41a502bd0f60eb24e1ce14edc7b6df6722a1](https://togithub.com/kazu-yamamoto/http2/commit/f61d41a502bd0f60eb24e1ce14edc7b6df6722a1) - [https://github.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61](https://togithub.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61) - [https://access.redhat.com/security/cve/cve-2023-44487](https://access.redhat.com/security/cve/cve-2023-44487) - [https://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/](https://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/) - [https://aws.amazon.com/security/security-bulletins/AWS-2023-011/](https://aws.amazon.com/security/security-bulletins/AWS-2023-011/) - [https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/](https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/) - [https://blog.cloudflare.com/zero-day-rapid-reset-http2-record-breaking-ddos-attack/](https://blog.cloudflare.com/zero-day-rapid-reset-http2-record-breaking-ddos-attack/) - [https://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/](https://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/) - [https://blog.qualys.com/vulnerabilities-threat-research/2023/10/10/cve-2023-44487-http-2-rapid-reset-attack](https://blog.qualys.com/vulnerabilities-threat-research/2023/10/10/cve-2023-44487-http-2-rapid-reset-attack) - [https://blog.vespa.ai/cve-2023-44487/](https://blog.vespa.ai/cve-2023-44487/) - [https://bugzilla.proxmox.com/show_bug.cgi?id=4988](https://bugzilla.proxmox.com/show_bug.cgi?id=4988) - [https://bugzilla.redhat.com/show_bug.cgi?id=2242803](https://bugzilla.redhat.com/show_bug.cgi?id=2242803) - [https://bugzilla.suse.com/show_bug.cgi?id=1216123](https://bugzilla.suse.com/show_bug.cgi?id=1216123) - [https://cgit.freebsd.org/ports/commit/?id=c64c329c2c1752f46b73e3e6ce9f4329be6629f9](https://cgit.freebsd.org/ports/commit/?id=c64c329c2c1752f46b73e3e6ce9f4329be6629f9) - [https://chaos.social/@​icing/111210915918780532](https://chaos.social/@​icing/111210915918780532) - [https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/](https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/) - [https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack](https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack) - [https://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125](https://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125) - [https://discuss.hashicorp.com/t/hcsec-2023-32-vault-consul-and-boundary-affected-by-http-2-rapid-reset-denial-of-service-vulnerability-cve-2023-44487/59715](https://discuss.hashicorp.com/t/hcsec-2023-32-vault-consul-and-boundary-affected-by-http-2-rapid-reset-denial-of-service-vulnerability-cve-2023-44487/59715) - [https://edg.io/lp/blog/resets-leaks-ddos-and-the-tale-of-a-hidden-cve](https://edg.io/lp/blog/resets-leaks-ddos-and-the-tale-of-a-hidden-cve) - [https://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764](https://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764) - [https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088](https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088) - [https://github.com/Kong/kong/discussions/11741](https://togithub.com/Kong/kong/discussions/11741) - [https://github.com/advisories/GHSA-qppj-fm5r-hxr3](https://togithub.com/advisories/GHSA-qppj-fm5r-hxr3) - [https://github.com/advisories/GHSA-vx74-f528-fxqg](https://togithub.com/advisories/GHSA-vx74-f528-fxqg) - [https://github.com/advisories/GHSA-xpw8-rcwv-8f8p](https://togithub.com/advisories/GHSA-xpw8-rcwv-8f8p) - [https://github.com/apache/httpd/blob/afcdbeebbff4b0c50ea26cdd16e178c0d1f24152/modules/http2/h2_mplx.c#L1101-L1113](https://togithub.com/apache/httpd/blob/afcdbeebbff4b0c50ea26cdd16e178c0d1f24152/modules/http2/h2_mplx.c#L1101-L1113) - [https://github.com/apache/tomcat/tree/main/java/org/apache/coyote/http2](https://togithub.com/apache/tomcat/tree/main/java/org/apache/coyote/http2) - [https://github.com/apple/swift-nio-http2](https://togithub.com/apple/swift-nio-http2) - [https://github.com/arkrwn/PoC/tree/main/CVE-2023-44487](https://togithub.com/arkrwn/PoC/tree/main/CVE-2023-44487) - [https://github.com/bcdannyboy/CVE-2023-44487](https://togithub.com/bcdannyboy/CVE-2023-44487) - [https://github.com/caddyserver/caddy/releases/tag/v2.7.5](https://togithub.com/caddyserver/caddy/releases/tag/v2.7.5) - [https://github.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73](https://togithub.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73) - [https://github.com/grpc/grpc-go/releases](https://togithub.com/grpc/grpc-go/releases) - [https://github.com/icing/mod_h2/blob/0a864782af0a942aa2ad4ed960a6b32cd35bcf0a/mod_http2/README.md?plain=1#L239-L244](https://togithub.com/icing/mod_h2/blob/0a864782af0a942aa2ad4ed960a6b32cd35bcf0a/mod_http2/README.md?plain=1#L239-L244) - [https://github.com/micrictor/http2-rst-stream](https://togithub.com/micrictor/http2-rst-stream) - [https://github.com/nghttp2/nghttp2/releases/tag/v1.57.0](https://togithub.com/nghttp2/nghttp2/releases/tag/v1.57.0) - [https://github.com/oqtane/oqtane.framework/discussions/3367](https://togithub.com/oqtane/oqtane.framework/discussions/3367) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) - [https://istio.io/latest/news/security/istio-security-2023-004/](https://istio.io/latest/news/security/istio-security-2023-004/) - [https://linkerd.io/2023/10/12/linkerd-cve-2023-44487/](https://linkerd.io/2023/10/12/linkerd-cve-2023-44487/) - [https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q](https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00024.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00024.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00045.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00045.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00047.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00047.html) - [https://lists.debian.org/debian-lts-announce/2023/11/msg00001.html](https://lists.debian.org/debian-lts-announce/2023/11/msg00001.html) - [https://lists.debian.org/debian-lts-announce/2023/11/msg00012.html](https://lists.debian.org/debian-lts-announce/2023/11/msg00012.html) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MBEPPC36UBVOZZNAXFHKLFGSLCMN5LI/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MBEPPC36UBVOZZNAXFHKLFGSLCMN5LI/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E72T67UPDRXHIDLO3OROR25YAMN4GGW5/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E72T67UPDRXHIDLO3OROR25YAMN4GGW5/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNA62Q767CFAFHBCDKYNPBMZWB7TWYVU/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNA62Q767CFAFHBCDKYNPBMZWB7TWYVU/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HT7T2R4MQKLIF4ODV4BDLPARWFPCJ5CZ/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HT7T2R4MQKLIF4ODV4BDLPARWFPCJ5CZ/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKYHSZQFDNR7RSA7LHVLLIAQMVYCUGBG/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKYHSZQFDNR7RSA7LHVLLIAQMVYCUGBG/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WE2I52RHNNU42PX6NZ2RBUHSFFJ2LVZX/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WE2I52RHNNU42PX6NZ2RBUHSFFJ2LVZX/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E72T67UPDRXHIDLO3OROR25YAMN4GGW5/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E72T67UPDRXHIDLO3OROR25YAMN4GGW5/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNA62Q767CFAFHBCDKYNPBMZWB7TWYVU/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNA62Q767CFAFHBCDKYNPBMZWB7TWYVU/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HT7T2R4MQKLIF4ODV4BDLPARWFPCJ5CZ/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HT7T2R4MQKLIF4ODV4BDLPARWFPCJ5CZ/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LKYHSZQFDNR7RSA7LHVLLIAQMVYCUGBG/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LKYHSZQFDNR7RSA7LHVLLIAQMVYCUGBG/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/) - [https://lists.w3.org/Archives/Public/ietf-http-wg/2023OctDec/0025.html](https://lists.w3.org/Archives/Public/ietf-http-wg/2023OctDec/0025.html) - [https://mailman.nginx.org/pipermail/nginx-devel/2023-October/S36Q5HBXR7CAIMPLLPRSSSYR4PCMWILK.html](https://mailman.nginx.org/pipermail/nginx-devel/2023-October/S36Q5HBXR7CAIMPLLPRSSSYR4PCMWILK.html) - [https://martinthomson.github.io/h2-stream-limits/draft-thomson-httpbis-h2-stream-limits.html](https://martinthomson.github.io/h2-stream-limits/draft-thomson-httpbis-h2-stream-limits.html) - [https://msrc.microsoft.com/blog/2023/10/microsoft-response-to-distributed-denial-of-service-ddos-attacks-against-http/2/](https://msrc.microsoft.com/blog/2023/10/microsoft-response-to-distributed-denial-of-service-ddos-attacks-against-http/2/) - [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-44487](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-44487) - [https://my.f5.com/manage/s/article/K000137106](https://my.f5.com/manage/s/article/K000137106) - [https://netty.io/news/2023/10/10/4-1-100-Final.html](https://netty.io/news/2023/10/10/4-1-100-Final.html) - [https://news.ycombinator.com/item?id=37830987](https://news.ycombinator.com/item?id=37830987) - [https://news.ycombinator.com/item?id=37830998](https://news.ycombinator.com/item?id=37830998) - [https://news.ycombinator.com/item?id=37831062](https://news.ycombinator.com/item?id=37831062) - [https://news.ycombinator.com/item?id=37837043](https://news.ycombinator.com/item?id=37837043) - [https://openssf.org/blog/2023/10/10/http-2-rapid-reset-vulnerability-highlights-need-for-rapid-response/](https://openssf.org/blog/2023/10/10/http-2-rapid-reset-vulnerability-highlights-need-for-rapid-response/) - [https://seanmonstar.com/post/730794151136935936/hyper-http2-rapid-reset-unaffected](https://seanmonstar.com/post/730794151136935936/hyper-http2-rapid-reset-unaffected) - [https://security.gentoo.org/glsa/202311-09](https://security.gentoo.org/glsa/202311-09) - [https://security.netapp.com/advisory/ntap-20231016-0001/](https://security.netapp.com/advisory/ntap-20231016-0001/) - [https://security.paloaltonetworks.com/CVE-2023-44487](https://security.paloaltonetworks.com/CVE-2023-44487) - [https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.14](https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.14) - [https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.0-M12](https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.0-M12) - [https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.94](https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.94) - [https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.81](https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.81) - [https://ubuntu.com/security/CVE-2023-44487](https://ubuntu.com/security/CVE-2023-44487) - [https://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/](https://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/) - [https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487](https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487) - [https://www.darkreading.com/cloud/internet-wide-zero-day-bug-fuels-largest-ever-ddos-event](https://www.darkreading.com/cloud/internet-wide-zero-day-bug-fuels-largest-ever-ddos-event) - [https://www.debian.org/security/2023/dsa-5521](https://www.debian.org/security/2023/dsa-5521) - [https://www.debian.org/security/2023/dsa-5522](https://www.debian.org/security/2023/dsa-5522) - [https://www.debian.org/security/2023/dsa-5540](https://www.debian.org/security/2023/dsa-5540) - [https://www.debian.org/security/2023/dsa-5549](https://www.debian.org/security/2023/dsa-5549) - [https://www.debian.org/security/2023/dsa-5558](https://www.debian.org/security/2023/dsa-5558) - [https://www.debian.org/security/2023/dsa-5570](https://www.debian.org/security/2023/dsa-5570) - [https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487](https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487) - [https://www.netlify.com/blog/netlify-successfully-mitigates-cve-2023-44487/](https://www.netlify.com/blog/netlify-successfully-mitigates-cve-2023-44487/) - [https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/](https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/) - [https://www.openwall.com/lists/oss-security/2023/10/10/6](https://www.openwall.com/lists/oss-security/2023/10/10/6) - [https://www.phoronix.com/news/HTTP2-Rapid-Reset-Attack](https://www.phoronix.com/news/HTTP2-Rapid-Reset-Attack) - [https://www.theregister.com/2023/10/10/http2_rapid_reset_zeroday/](https://www.theregister.com/2023/10/10/http2_rapid_reset_zeroday/) - [http://www.openwall.com/lists/oss-security/2023/10/13/4](http://www.openwall.com/lists/oss-security/2023/10/13/4) - [http://www.openwall.com/lists/oss-security/2023/10/13/9](http://www.openwall.com/lists/oss-security/2023/10/13/9) - [http://www.openwall.com/lists/oss-security/2023/10/18/4](http://www.openwall.com/lists/oss-security/2023/10/18/4) - [http://www.openwall.com/lists/oss-security/2023/10/18/8](http://www.openwall.com/lists/oss-security/2023/10/18/8) - [http://www.openwall.com/lists/oss-security/2023/10/19/6](http://www.openwall.com/lists/oss-security/2023/10/19/6) - [http://www.openwall.com/lists/oss-security/2023/10/20/8](http://www.openwall.com/lists/oss-security/2023/10/20/8) This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-qppj-fm5r-hxr3) and the [GitHub Advisory Database](https://togithub.com/github/advisory-database) ([CC-BY 4.0](https://togithub.com/github/advisory-database/blob/main/LICENSE.md)). </details> --- ### Configuration 📅 **Schedule**: Branch creation - 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This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | golang.org/x/net | `v0.13.0` -> `v0.17.0` | [![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fnet/v0.17.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/go/golang.org%2fx%2fnet/v0.17.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/go/golang.org%2fx%2fnet/v0.13.0/v0.17.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2fnet/v0.13.0/v0.17.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | ### GitHub Vulnerability Alerts #### [CVE-2023-39325](https://togithub.com/golang/go/issues/63417) A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function. #### [CVE-2023-44487](https://togithub.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3) ## HTTP/2 Rapid reset attack The HTTP/2 protocol allows clients to indicate to the server that a previous stream should be canceled by sending a RST_STREAM frame. The protocol does not require the client and server to coordinate the cancellation in any way, the client may do it unilaterally. The client may also assume that the cancellation will take effect immediately when the server receives the RST_STREAM frame, before any other data from that TCP connection is processed. Abuse of this feature is called a Rapid Reset attack because it relies on the ability for an endpoint to send a RST_STREAM frame immediately after sending a request frame, which makes the other endpoint start working and then rapidly resets the request. The request is canceled, but leaves the HTTP/2 connection open. The HTTP/2 Rapid Reset attack built on this capability is simple: The client opens a large number of streams at once as in the standard HTTP/2 attack, but rather than waiting for a response to each request stream from the server or proxy, the client cancels each request immediately. The ability to reset streams immediately allows each connection to have an indefinite number of requests in flight. By explicitly canceling the requests, the attacker never exceeds the limit on the number of concurrent open streams. The number of in-flight requests is no longer dependent on the round-trip time (RTT), but only on the available network bandwidth. In a typical HTTP/2 server implementation, the server will still have to do significant amounts of work for canceled requests, such as allocating new stream data structures, parsing the query and doing header decompression, and mapping the URL to a resource. For reverse proxy implementations, the request may be proxied to the backend server before the RST_STREAM frame is processed. The client on the other hand paid almost no costs for sending the requests. This creates an exploitable cost asymmetry between the server and the client. Multiple software artifacts implementing HTTP/2 are affected. This advisory was originally ingested from the `swift-nio-http2` repo advisory and their original conent follows. ## swift-nio-http2 specific advisory swift-nio-http2 is vulnerable to a denial-of-service vulnerability in which a malicious client can create and then reset a large number of HTTP/2 streams in a short period of time. This causes swift-nio-http2 to commit to a large amount of expensive work which it then throws away, including creating entirely new `Channel`s to serve the traffic. This can easily overwhelm an `EventLoop` and prevent it from making forward progress. swift-nio-http2 1.28 contains a remediation for this issue that applies reset counter using a sliding window. This constrains the number of stream resets that may occur in a given window of time. Clients violating this limit will have their connections torn down. This allows clients to continue to cancel streams for legitimate reasons, while constraining malicious actors. --- ### HTTP/2 rapid reset can cause excessive work in net/http BIT-golang-2023-39325 / [CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) / [GHSA-4374-p667-p6c8](https://togithub.com/advisories/GHSA-4374-p667-p6c8) / [GO-2023-2102](https://pkg.go.dev/vuln/GO-2023-2102) <details> <summary>More information</summary> #### Details A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function. #### Severity Unknown #### References - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) This data is provided by [OSV](https://osv.dev/vulnerability/GO-2023-2102) and the [Go Vulnerability Database](https://togithub.com/golang/vulndb) ([CC-BY 4.0](https://togithub.com/golang/vulndb#license)). </details> --- ### HTTP/2 Stream Cancellation Attack BIT-apisix-2023-44487 / BIT-aspnet-core-2023-44487 / BIT-contour-2023-44487 / BIT-dotnet-2023-44487 / BIT-dotnet-sdk-2023-44487 / BIT-envoy-2023-44487 / BIT-golang-2023-44487 / BIT-jenkins-2023-44487 / BIT-kong-2023-44487 / BIT-nginx-2023-44487 / BIT-nginx-ingress-controller-2023-44487 / BIT-node-2023-44487 / BIT-solr-2023-44487 / BIT-tomcat-2023-44487 / BIT-varnish-2023-44487 / [CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487) / [GHSA-2m7v-gc89-fjqf](https://togithub.com/advisories/GHSA-2m7v-gc89-fjqf) / [GHSA-qppj-fm5r-hxr3](https://togithub.com/advisories/GHSA-qppj-fm5r-hxr3) / [GHSA-vx74-f528-fxqg](https://togithub.com/advisories/GHSA-vx74-f528-fxqg) / [GHSA-xpw8-rcwv-8f8p](https://togithub.com/advisories/GHSA-xpw8-rcwv-8f8p) <details> <summary>More information</summary> #### Details ##### HTTP/2 Rapid reset attack The HTTP/2 protocol allows clients to indicate to the server that a previous stream should be canceled by sending a RST_STREAM frame. The protocol does not require the client and server to coordinate the cancellation in any way, the client may do it unilaterally. The client may also assume that the cancellation will take effect immediately when the server receives the RST_STREAM frame, before any other data from that TCP connection is processed. Abuse of this feature is called a Rapid Reset attack because it relies on the ability for an endpoint to send a RST_STREAM frame immediately after sending a request frame, which makes the other endpoint start working and then rapidly resets the request. The request is canceled, but leaves the HTTP/2 connection open. The HTTP/2 Rapid Reset attack built on this capability is simple: The client opens a large number of streams at once as in the standard HTTP/2 attack, but rather than waiting for a response to each request stream from the server or proxy, the client cancels each request immediately. The ability to reset streams immediately allows each connection to have an indefinite number of requests in flight. By explicitly canceling the requests, the attacker never exceeds the limit on the number of concurrent open streams. The number of in-flight requests is no longer dependent on the round-trip time (RTT), but only on the available network bandwidth. In a typical HTTP/2 server implementation, the server will still have to do significant amounts of work for canceled requests, such as allocating new stream data structures, parsing the query and doing header decompression, and mapping the URL to a resource. For reverse proxy implementations, the request may be proxied to the backend server before the RST_STREAM frame is processed. The client on the other hand paid almost no costs for sending the requests. This creates an exploitable cost asymmetry between the server and the client. Multiple software artifacts implementing HTTP/2 are affected. This advisory was originally ingested from the `swift-nio-http2` repo advisory and their original conent follows. ##### swift-nio-http2 specific advisory swift-nio-http2 is vulnerable to a denial-of-service vulnerability in which a malicious client can create and then reset a large number of HTTP/2 streams in a short period of time. This causes swift-nio-http2 to commit to a large amount of expensive work which it then throws away, including creating entirely new `Channel`s to serve the traffic. This can easily overwhelm an `EventLoop` and prevent it from making forward progress. swift-nio-http2 1.28 contains a remediation for this issue that applies reset counter using a sliding window. This constrains the number of stream resets that may occur in a given window of time. Clients violating this limit will have their connections torn down. This allows clients to continue to cancel streams for legitimate reasons, while constraining malicious actors. #### Severity - CVSS Score: 5.3 / 10 (Medium) - Vector String: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L` #### References - [https://github.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3](https://togithub.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3) - [https://github.com/h2o/h2o/security/advisories/GHSA-2m7v-gc89-fjqf](https://togithub.com/h2o/h2o/security/advisories/GHSA-2m7v-gc89-fjqf) - [https://nvd.nist.gov/vuln/detail/CVE-2023-44487](https://nvd.nist.gov/vuln/detail/CVE-2023-44487) - [https://github.com/Azure/AKS/issues/3947](https://togithub.com/Azure/AKS/issues/3947) - [https://github.com/akka/akka-http/issues/4323](https://togithub.com/akka/akka-http/issues/4323) - [https://github.com/alibaba/tengine/issues/1872](https://togithub.com/alibaba/tengine/issues/1872) - [https://github.com/apache/apisix/issues/10320](https://togithub.com/apache/apisix/issues/10320) - [https://github.com/caddyserver/caddy/issues/5877](https://togithub.com/caddyserver/caddy/issues/5877) - [https://github.com/dotnet/announcements/issues/277](https://togithub.com/dotnet/announcements/issues/277) - [https://github.com/eclipse/jetty.project/issues/10679](https://togithub.com/eclipse/jetty.project/issues/10679) - [https://github.com/etcd-io/etcd/issues/16740](https://togithub.com/etcd-io/etcd/issues/16740) - [https://github.com/golang/go/issues/63417](https://togithub.com/golang/go/issues/63417) - [https://github.com/haproxy/haproxy/issues/2312](https://togithub.com/haproxy/haproxy/issues/2312) - [https://github.com/hyperium/hyper/issues/3337](https://togithub.com/hyperium/hyper/issues/3337) - [https://github.com/junkurihara/rust-rpxy/issues/97](https://togithub.com/junkurihara/rust-rpxy/issues/97) - [https://github.com/kazu-yamamoto/http2/issues/93](https://togithub.com/kazu-yamamoto/http2/issues/93) - [https://github.com/ninenines/cowboy/issues/1615](https://togithub.com/ninenines/cowboy/issues/1615) - [https://github.com/openresty/openresty/issues/930](https://togithub.com/openresty/openresty/issues/930) - [https://github.com/opensearch-project/data-prepper/issues/3474](https://togithub.com/opensearch-project/data-prepper/issues/3474) - [https://github.com/tempesta-tech/tempesta/issues/1986](https://togithub.com/tempesta-tech/tempesta/issues/1986) - [https://github.com/varnishcache/varnish-cache/issues/3996](https://togithub.com/varnishcache/varnish-cache/issues/3996) - [https://github.com/apache/httpd-site/pull/10](https://togithub.com/apache/httpd-site/pull/10) - [https://github.com/apache/trafficserver/pull/10564](https://togithub.com/apache/trafficserver/pull/10564) - [https://github.com/envoyproxy/envoy/pull/30055](https://togithub.com/envoyproxy/envoy/pull/30055) - [https://github.com/facebook/proxygen/pull/466](https://togithub.com/facebook/proxygen/pull/466) - [https://github.com/grpc/grpc-go/pull/6703](https://togithub.com/grpc/grpc-go/pull/6703) - [https://github.com/h2o/h2o/pull/3291](https://togithub.com/h2o/h2o/pull/3291) - [https://github.com/kubernetes/kubernetes/pull/121120](https://togithub.com/kubernetes/kubernetes/pull/121120) - [https://github.com/line/armeria/pull/5232](https://togithub.com/line/armeria/pull/5232) - [https://github.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632](https://togithub.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632) - [https://github.com/microsoft/CBL-Mariner/pull/6381](https://togithub.com/microsoft/CBL-Mariner/pull/6381) - [https://github.com/nghttp2/nghttp2/pull/1961](https://togithub.com/nghttp2/nghttp2/pull/1961) - [https://github.com/nodejs/node/pull/50121](https://togithub.com/nodejs/node/pull/50121) - [https://github.com/projectcontour/contour/pull/5826](https://togithub.com/projectcontour/contour/pull/5826) - [https://github.com/kazu-yamamoto/http2/commit/f61d41a502bd0f60eb24e1ce14edc7b6df6722a1](https://togithub.com/kazu-yamamoto/http2/commit/f61d41a502bd0f60eb24e1ce14edc7b6df6722a1) - [https://github.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61](https://togithub.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61) - [https://access.redhat.com/security/cve/cve-2023-44487](https://access.redhat.com/security/cve/cve-2023-44487) - [https://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/](https://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/) - [https://aws.amazon.com/security/security-bulletins/AWS-2023-011/](https://aws.amazon.com/security/security-bulletins/AWS-2023-011/) - [https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/](https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/) - [https://blog.cloudflare.com/zero-day-rapid-reset-http2-record-breaking-ddos-attack/](https://blog.cloudflare.com/zero-day-rapid-reset-http2-record-breaking-ddos-attack/) - [https://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/](https://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/) - [https://blog.qualys.com/vulnerabilities-threat-research/2023/10/10/cve-2023-44487-http-2-rapid-reset-attack](https://blog.qualys.com/vulnerabilities-threat-research/2023/10/10/cve-2023-44487-http-2-rapid-reset-attack) - [https://blog.vespa.ai/cve-2023-44487/](https://blog.vespa.ai/cve-2023-44487/) - [https://bugzilla.proxmox.com/show_bug.cgi?id=4988](https://bugzilla.proxmox.com/show_bug.cgi?id=4988) - [https://bugzilla.redhat.com/show_bug.cgi?id=2242803](https://bugzilla.redhat.com/show_bug.cgi?id=2242803) - [https://bugzilla.suse.com/show_bug.cgi?id=1216123](https://bugzilla.suse.com/show_bug.cgi?id=1216123) - [https://cgit.freebsd.org/ports/commit/?id=c64c329c2c1752f46b73e3e6ce9f4329be6629f9](https://cgit.freebsd.org/ports/commit/?id=c64c329c2c1752f46b73e3e6ce9f4329be6629f9) - [https://chaos.social/@​icing/111210915918780532](https://chaos.social/@​icing/111210915918780532) - [https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/](https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/) - [https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack](https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack) - [https://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125](https://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125) - [https://discuss.hashicorp.com/t/hcsec-2023-32-vault-consul-and-boundary-affected-by-http-2-rapid-reset-denial-of-service-vulnerability-cve-2023-44487/59715](https://discuss.hashicorp.com/t/hcsec-2023-32-vault-consul-and-boundary-affected-by-http-2-rapid-reset-denial-of-service-vulnerability-cve-2023-44487/59715) - [https://edg.io/lp/blog/resets-leaks-ddos-and-the-tale-of-a-hidden-cve](https://edg.io/lp/blog/resets-leaks-ddos-and-the-tale-of-a-hidden-cve) - [https://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764](https://forums.swift.org/t/swift-nio-http2-security-update-cve-2023-44487-http-2-dos/67764) - [https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088](https://gist.github.com/adulau/7c2bfb8e9cdbe4b35a5e131c66a0c088) - [https://github.com/Kong/kong/discussions/11741](https://togithub.com/Kong/kong/discussions/11741) - [https://github.com/advisories/GHSA-qppj-fm5r-hxr3](https://togithub.com/advisories/GHSA-qppj-fm5r-hxr3) - [https://github.com/advisories/GHSA-vx74-f528-fxqg](https://togithub.com/advisories/GHSA-vx74-f528-fxqg) - [https://github.com/advisories/GHSA-xpw8-rcwv-8f8p](https://togithub.com/advisories/GHSA-xpw8-rcwv-8f8p) - [https://github.com/apache/httpd/blob/afcdbeebbff4b0c50ea26cdd16e178c0d1f24152/modules/http2/h2_mplx.c#L1101-L1113](https://togithub.com/apache/httpd/blob/afcdbeebbff4b0c50ea26cdd16e178c0d1f24152/modules/http2/h2_mplx.c#L1101-L1113) - [https://github.com/apache/tomcat/tree/main/java/org/apache/coyote/http2](https://togithub.com/apache/tomcat/tree/main/java/org/apache/coyote/http2) - [https://github.com/apple/swift-nio-http2](https://togithub.com/apple/swift-nio-http2) - [https://github.com/arkrwn/PoC/tree/main/CVE-2023-44487](https://togithub.com/arkrwn/PoC/tree/main/CVE-2023-44487) - [https://github.com/bcdannyboy/CVE-2023-44487](https://togithub.com/bcdannyboy/CVE-2023-44487) - [https://github.com/caddyserver/caddy/releases/tag/v2.7.5](https://togithub.com/caddyserver/caddy/releases/tag/v2.7.5) - [https://github.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73](https://togithub.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73) - [https://github.com/grpc/grpc-go/releases](https://togithub.com/grpc/grpc-go/releases) - [https://github.com/icing/mod_h2/blob/0a864782af0a942aa2ad4ed960a6b32cd35bcf0a/mod_http2/README.md?plain=1#L239-L244](https://togithub.com/icing/mod_h2/blob/0a864782af0a942aa2ad4ed960a6b32cd35bcf0a/mod_http2/README.md?plain=1#L239-L244) - [https://github.com/micrictor/http2-rst-stream](https://togithub.com/micrictor/http2-rst-stream) - [https://github.com/nghttp2/nghttp2/releases/tag/v1.57.0](https://togithub.com/nghttp2/nghttp2/releases/tag/v1.57.0) - [https://github.com/oqtane/oqtane.framework/discussions/3367](https://togithub.com/oqtane/oqtane.framework/discussions/3367) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) - [https://istio.io/latest/news/security/istio-security-2023-004/](https://istio.io/latest/news/security/istio-security-2023-004/) - [https://linkerd.io/2023/10/12/linkerd-cve-2023-44487/](https://linkerd.io/2023/10/12/linkerd-cve-2023-44487/) - [https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q](https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00024.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00024.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00045.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00045.html) - [https://lists.debian.org/debian-lts-announce/2023/10/msg00047.html](https://lists.debian.org/debian-lts-announce/2023/10/msg00047.html) - [https://lists.debian.org/debian-lts-announce/2023/11/msg00001.html](https://lists.debian.org/debian-lts-announce/2023/11/msg00001.html) - [https://lists.debian.org/debian-lts-announce/2023/11/msg00012.html](https://lists.debian.org/debian-lts-announce/2023/11/msg00012.html) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MBEPPC36UBVOZZNAXFHKLFGSLCMN5LI/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MBEPPC36UBVOZZNAXFHKLFGSLCMN5LI/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E72T67UPDRXHIDLO3OROR25YAMN4GGW5/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E72T67UPDRXHIDLO3OROR25YAMN4GGW5/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNA62Q767CFAFHBCDKYNPBMZWB7TWYVU/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNA62Q767CFAFHBCDKYNPBMZWB7TWYVU/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HT7T2R4MQKLIF4ODV4BDLPARWFPCJ5CZ/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HT7T2R4MQKLIF4ODV4BDLPARWFPCJ5CZ/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMEXY22BFG5Q64HQCM5CK2Q7KDKVV4TY/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKYHSZQFDNR7RSA7LHVLLIAQMVYCUGBG/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKYHSZQFDNR7RSA7LHVLLIAQMVYCUGBG/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WE2I52RHNNU42PX6NZ2RBUHSFFJ2LVZX/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WE2I52RHNNU42PX6NZ2RBUHSFFJ2LVZX/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/) - [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/) - 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[https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LNMZJCDHGLJJLXO4OXWJMTVQRNWOC7UL/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSRDIV77HNKUSM7SJC5BKE5JSHLHU2NK/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WLPRQ5TWUQQXYWBJM7ECYDAIL2YVKIUH/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6QXN4ORIVF6XBW4WWFE7VNPVC74S45Y/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZB43REMKRQR62NJEI7I5NQ4FSXNLBKRT/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLU6U2R2IC2K64NDPNMV55AUAO65MAF4/) - [https://lists.w3.org/Archives/Public/ietf-http-wg/2023OctDec/0025.html](https://lists.w3.org/Archives/Public/ietf-http-wg/2023OctDec/0025.html) - [https://mailman.nginx.org/pipermail/nginx-devel/2023-October/S36Q5HBXR7CAIMPLLPRSSSYR4PCMWILK.html](https://mailman.nginx.org/pipermail/nginx-devel/2023-October/S36Q5HBXR7CAIMPLLPRSSSYR4PCMWILK.html) - [https://martinthomson.github.io/h2-stream-limits/draft-thomson-httpbis-h2-stream-limits.html](https://martinthomson.github.io/h2-stream-limits/draft-thomson-httpbis-h2-stream-limits.html) - [https://msrc.microsoft.com/blog/2023/10/microsoft-response-to-distributed-denial-of-service-ddos-attacks-against-http/2/](https://msrc.microsoft.com/blog/2023/10/microsoft-response-to-distributed-denial-of-service-ddos-attacks-against-http/2/) - [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-44487](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-44487) - [https://my.f5.com/manage/s/article/K000137106](https://my.f5.com/manage/s/article/K000137106) - [https://netty.io/news/2023/10/10/4-1-100-Final.html](https://netty.io/news/2023/10/10/4-1-100-Final.html) - [https://news.ycombinator.com/item?id=37830987](https://news.ycombinator.com/item?id=37830987) - [https://news.ycombinator.com/item?id=37830998](https://news.ycombinator.com/item?id=37830998) - [https://news.ycombinator.com/item?id=37831062](https://news.ycombinator.com/item?id=37831062) - [https://news.ycombinator.com/item?id=37837043](https://news.ycombinator.com/item?id=37837043) - [https://openssf.org/blog/2023/10/10/http-2-rapid-reset-vulnerability-highlights-need-for-rapid-response/](https://openssf.org/blog/2023/10/10/http-2-rapid-reset-vulnerability-highlights-need-for-rapid-response/) - [https://seanmonstar.com/post/730794151136935936/hyper-http2-rapid-reset-unaffected](https://seanmonstar.com/post/730794151136935936/hyper-http2-rapid-reset-unaffected) - [https://security.gentoo.org/glsa/202311-09](https://security.gentoo.org/glsa/202311-09) - [https://security.netapp.com/advisory/ntap-20231016-0001/](https://security.netapp.com/advisory/ntap-20231016-0001/) - [https://security.paloaltonetworks.com/CVE-2023-44487](https://security.paloaltonetworks.com/CVE-2023-44487) - [https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.14](https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.14) - [https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.0-M12](https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.0-M12) - [https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.94](https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.94) - [https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.81](https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.81) - [https://ubuntu.com/security/CVE-2023-44487](https://ubuntu.com/security/CVE-2023-44487) - [https://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/](https://www.bleepingcomputer.com/news/security/new-http-2-rapid-reset-zero-day-attack-breaks-ddos-records/) - [https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487](https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487) - [https://www.darkreading.com/cloud/internet-wide-zero-day-bug-fuels-largest-ever-ddos-event](https://www.darkreading.com/cloud/internet-wide-zero-day-bug-fuels-largest-ever-ddos-event) - [https://www.debian.org/security/2023/dsa-5521](https://www.debian.org/security/2023/dsa-5521) - [https://www.debian.org/security/2023/dsa-5522](https://www.debian.org/security/2023/dsa-5522) - [https://www.debian.org/security/2023/dsa-5540](https://www.debian.org/security/2023/dsa-5540) - [https://www.debian.org/security/2023/dsa-5549](https://www.debian.org/security/2023/dsa-5549) - [https://www.debian.org/security/2023/dsa-5558](https://www.debian.org/security/2023/dsa-5558) - [https://www.debian.org/security/2023/dsa-5570](https://www.debian.org/security/2023/dsa-5570) - [https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487](https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487) - [https://www.netlify.com/blog/netlify-successfully-mitigates-cve-2023-44487/](https://www.netlify.com/blog/netlify-successfully-mitigates-cve-2023-44487/) - [https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/](https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/) - [https://www.openwall.com/lists/oss-security/2023/10/10/6](https://www.openwall.com/lists/oss-security/2023/10/10/6) - [https://www.phoronix.com/news/HTTP2-Rapid-Reset-Attack](https://www.phoronix.com/news/HTTP2-Rapid-Reset-Attack) - [https://www.theregister.com/2023/10/10/http2_rapid_reset_zeroday/](https://www.theregister.com/2023/10/10/http2_rapid_reset_zeroday/) - [http://www.openwall.com/lists/oss-security/2023/10/13/4](http://www.openwall.com/lists/oss-security/2023/10/13/4) - [http://www.openwall.com/lists/oss-security/2023/10/13/9](http://www.openwall.com/lists/oss-security/2023/10/13/9) - [http://www.openwall.com/lists/oss-security/2023/10/18/4](http://www.openwall.com/lists/oss-security/2023/10/18/4) - [http://www.openwall.com/lists/oss-security/2023/10/18/8](http://www.openwall.com/lists/oss-security/2023/10/18/8) - [http://www.openwall.com/lists/oss-security/2023/10/19/6](http://www.openwall.com/lists/oss-security/2023/10/19/6) - [http://www.openwall.com/lists/oss-security/2023/10/20/8](http://www.openwall.com/lists/oss-security/2023/10/20/8) This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-qppj-fm5r-hxr3) and the [GitHub Advisory Database](https://togithub.com/github/advisory-database) ([CC-BY 4.0](https://togithub.com/github/advisory-database/blob/main/LICENSE.md)). </details> --- ### HTTP/2 rapid reset can cause excessive work in net/http BIT-golang-2023-39325 / [CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) / [GHSA-4374-p667-p6c8](https://togithub.com/advisories/GHSA-4374-p667-p6c8) / [GO-2023-2102](https://pkg.go.dev/vuln/GO-2023-2102) <details> <summary>More information</summary> #### Details A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function. #### Severity - CVSS Score: 7.5 / 10 (High) - Vector String: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H` #### References - [https://nvd.nist.gov/vuln/detail/CVE-2023-39325](https://nvd.nist.gov/vuln/detail/CVE-2023-39325) - [https://github.com/golang/go/issues/63417](https://togithub.com/golang/go/issues/63417) - [https://go.dev/cl/534215](https://go.dev/cl/534215) - [https://go.dev/cl/534235](https://go.dev/cl/534235) - [https://go.dev/issue/63417](https://go.dev/issue/63417) - [https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ](https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SZN67IL7HMGMNAVLOTIXLIHUDXZK4LH/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SZN67IL7HMGMNAVLOTIXLIHUDXZK4LH/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVZDNSMVDAQJ64LJC5I5U5LDM5753647/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVZDNSMVDAQJ64LJC5I5U5LDM5753647/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2BBIDR2ZMB3X5BC7SR4SLQMHRMVPY6L/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2BBIDR2ZMB3X5BC7SR4SLQMHRMVPY6L/) - 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[https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCNCBYKZXLDFGAJUB7ZP5VLC3YTHJNVH/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCNCBYKZXLDFGAJUB7ZP5VLC3YTHJNVH/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XTNLSL44Y5FB6JWADSZH6DCV4JJAAEQY/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XTNLSL44Y5FB6JWADSZH6DCV4JJAAEQY/) - [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YRKEXKANQ7BKJW2YTAMP625LJUJZLJ4P/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YRKEXKANQ7BKJW2YTAMP625LJUJZLJ4P/) - [https://pkg.go.dev/vuln/GO-2023-2102](https://pkg.go.dev/vuln/GO-2023-2102) - [https://security.gentoo.org/glsa/202311-09](https://security.gentoo.org/glsa/202311-09) - [https://security.netapp.com/advisory/ntap-20231110-0008/](https://security.netapp.com/advisory/ntap-20231110-0008/) - [golang.org/x/net](golang.org/x/net) This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-4374-p667-p6c8) and the [GitHub Advisory Database](https://togithub.com/github/advisory-database) ([CC-BY 4.0](https://togithub.com/github/advisory-database/blob/main/LICENSE.md)). </details> --- ### Configuration 📅 **Schedule**: Branch creation - "" (UTC), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Enabled. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 👻 **Immortal**: This PR will be recreated if closed unmerged. 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What would you like to be added?
Refer to GHSA-qppj-fm5r-hxr3
Bump golang.org/x/net:
Bump golang:
Bump grpc-go:
Clarification
Why is this needed?
resolve CVE
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