|author||Filippo Valsorda <email@example.com>||Thu Jun 18 22:45:52 2020 -0400|
|committer||Katie Hockman <firstname.lastname@example.org>||Tue Jul 14 17:12:22 2020 +0000|
crypto/x509: respect VerifyOptions.KeyUsages on Windows When using the platform verifier on Windows (because Roots is nil) we were always enforcing server auth EKUs if DNSName was set, and none otherwise. If an application was setting KeyUsages, they were not being respected. Started correctly surfacing IncompatibleUsage errors from the system verifier, as those are the ones applications will see if they are affected by this change. Also refactored verify_test.go to make it easier to add tests for this, and replaced the EKULeaf chain with a new one that doesn't have a SHA-1 signature. Thanks to Niall Newman for reporting this. Fixes #39360 Fixes CVE-2020-14039 Change-Id: If5c00d615f2944f7d57007891aae1307f9571c32 Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/774414 Reviewed-by: Katie Hockman <email@example.com> Reviewed-on: https://go-review.googlesource.com/c/go/+/242597 Run-TryBot: Katie Hockman <firstname.lastname@example.org> Reviewed-by: Filippo Valsorda <email@example.com> TryBot-Result: Gobot Gobot <firstname.lastname@example.org>
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