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security: fix CVE-2024-24787 [1.22 backport] #67122

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gopherbot opened this issue Apr 30, 2024 · 2 comments
Closed

security: fix CVE-2024-24787 [1.22 backport] #67122

gopherbot opened this issue Apr 30, 2024 · 2 comments
Labels
CherryPickApproved Used during the release process for point releases release-blocker Security
Milestone
Go1.22.3

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@gopherbot
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@rolandshoemaker requested issue #67119 to be considered for backport to the next 1.22 minor release.

@gopherbot please open backports, this is a PRIVATE track security issue.
@gopherbot gopherbot added CherryPickCandidate Used during the release process for point releases Security labels Apr 30, 2024
@gopherbot gopherbot mentioned this issue Apr 30, 2024
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@gopherbot gopherbot added this to the Go1.22.3 milestone Apr 30, 2024
@rolandshoemaker rolandshoemaker added CherryPickApproved Used during the release process for point releases and removed CherryPickCandidate Used during the release process for point releases labels Apr 30, 2024
@gopherbot
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Change https://go.dev/cl/583796 mentions this issue: [release-branch.go1.22] cmd/go: disallow -lto_library in LDFLAGS

@gopherbot
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Closed by merging fa0292d to release-branch.go1.22.

gopherbot pushed a commit that referenced this issue May 7, 2024
@rolandshoemaker @cherrymui
[release-branch.go1.22] cmd/go: disallow -lto_library in LDFLAGS
fa0292d 
The darwin linker allows setting the LTO library with the -lto_library
flag. This wasn't caught by our "safe linker flags" check because it
was covered by the -lx flag used for linking libraries. This change
adds a specific check for excluded flags which otherwise satisfy our
existing checks.

Loading a mallicious LTO library would allow an attacker to cause the
linker to execute abritrary code when "go build" was called.

Thanks to Juho Forsén of Mattermost for reporting this issue.

Fixes #67119
Fixes #67122
Fixes CVE-2024-24787

Change-Id: I77ac8585efbdbdfd5f39c39ed623b9408a0f9eaf
Reviewed-on: https://go-internal-review.googlesource.com/c/go/+/1380
Reviewed-by: Russ Cox <rsc@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
(cherry picked from commit 9a79141fbbca1105e5c786f15e38741ca7843290)
Reviewed-on: https://go-internal-review.googlesource.com/c/go/+/1420
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/583796
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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CherryPickApproved Used during the release process for point releases release-blocker Security
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Go1.22.3
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