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crypto/elliptic: generic P-256 panic when scalar has too many leading zeroes (CVE-2022-28327) [1.18 backport] #52077

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gopherbot opened this issue Mar 31, 2022 · 2 comments
Closed

crypto/elliptic: generic P-256 panic when scalar has too many leading zeroes (CVE-2022-28327) [1.18 backport] #52077

gopherbot opened this issue Mar 31, 2022 · 2 comments
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CherryPickApproved Used during the release process for point releases FrozenDueToAge release-blocker Security
Milestone
Go1.18.1

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@gopherbot
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@FiloSottile requested issue #52075 to be considered for backport to the next 1.18 minor release.

@gopherbot please open backport issues for this security fix.
@gopherbot gopherbot added the CherryPickCandidate Used during the release process for point releases label Mar 31, 2022
@gopherbot gopherbot mentioned this issue Mar 31, 2022
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@gopherbot gopherbot added this to the Go1.18.1 milestone Mar 31, 2022
@gopherbot
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Change https://go.dev/cl/397137 mentions this issue: [release-branch.go1.18] crypto/elliptic: tolerate zero-padded scalars in generic P-256

@FiloSottile FiloSottile changed the title crypto/elliptic: generic P-256 panic when scalar has too many leading zeroes [1.18 backport] crypto/elliptic: generic P-256 panic when scalar has too many leading zeroes (CVE-2022-28327) [1.18 backport] Apr 1, 2022
@cherrymui cherrymui added CherryPickApproved Used during the release process for point releases and removed CherryPickCandidate Used during the release process for point releases labels Apr 6, 2022
@gopherbot
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Closed by merging c9b9a01 to release-branch.go1.18.

gopherbot pushed a commit that referenced this issue Apr 6, 2022
@FiloSottile @cherrymui
[release-branch.go1.18] crypto/elliptic: tolerate zero-padded scalars…
c9b9a01 
… in generic P-256

Updates #52075
Fixes #52077
Fixes CVE-2022-28327

Change-Id: I595a7514c9a0aa1b9c76aedfc2307e1124271f27
Reviewed-on: https://go-review.googlesource.com/c/go/+/397137
Trust: Filippo Valsorda <[email protected]>
Reviewed-by: Julie Qiu <[email protected]>
@golang golang locked and limited conversation to collaborators Apr 6, 2023
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CherryPickApproved Used during the release process for point releases FrozenDueToAge release-blocker Security
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Go1.18.1
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@cagedmantis @FiloSottile @gopherbot @cherrymui