update: go

[dongsupark]

Name: go
CVEs: CVE-2023-39326, CVE-2023-45285
CVSSs: 5.3, 7.5
Action Needed: update to >= 1.20.12

Summary:

• CVE-2023-39326: A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small.
• CVE-2023-45285: Using go get to fetch a module with the ".git" suffix may unexpectedly fallback to the insecure "git://" protocol if the module is unavailable via the secure "https://" and "git+ssh://" protocols, even if GOINSECURE is not set for said module. This only affects users who are not using the module proxy and are fetching modules directly (i.e. GOPROXY=off).

See also https://groups.google.com/g/golang-announce/c/iLGK3x6yuNo.

refmap.gentoo: https://bugs.gentoo.org/919310