| commit | 953bc8f391a63adf00bac2515dba62abe8a1e2c2 | [log] [tgz] |
|---|---|---|
| author | Filippo Valsorda <filippo@golang.org> | Tue Jan 21 14:45:15 2020 -0500 |
| committer | Filippo Valsorda <filippo@golang.org> | Thu Jan 23 22:31:25 2020 +0000 |
| tree | 49be0108054034a92c417ee51ca22aa3a6260391 | |
| parent | ace25f82df0a27eb26a518e1883eb56c1bec6c5e [diff] |
crypto/x509: mitigate CVE-2020-0601 verification bypass on Windows An attacker can trick the Windows system verifier to use a poisoned set of elliptic curve parameters for a trusted root, allowing it to generate spoofed signatures. When this happens, the returned chain will present the unmodified original root, so the actual signatures won't verify (as they are invalid for the correct parameters). Simply double check them as a safety measure and mitigation. Windows users should still install the system security patch ASAP. This is the same mitigation adopted by Chromium: https://chromium-review.googlesource.com/c/chromium/src/+/1994434 Change-Id: I2c734f6fb2cb51d906c7fd77034318ffeeb3e146 Reviewed-on: https://go-review.googlesource.com/c/go/+/215905 Run-TryBot: Filippo Valsorda <filippo@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ryan Sleevi <sleevi@google.com> Reviewed-by: Katie Hockman <katie@golang.org>
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