CVE-2022-21657 X.509 Extended Key Usage and Trust Purposes bypass in Envoy

Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions Envoy does not restrict the set of certificates it accepts from the peer, either as a TLS client or a TLS server, to only those certificates that contain the necessary extendedKeyUsage...

GO-2021-0223 Certificate verification error on Windows in crypto/x509

On Windows, if VerifyOptions.Roots is nil, Certificate.Verify does not check the EKU requirements specified in VerifyOptions.KeyUsages. This may allow a certificate to be used for an unintended purpose...

GO-2021-0140

X509 Certificate verification does not validate KeyUsages EKU requirements on Windows if VerifyOptions.Roots is nil...

Design/Logic Flaw

In Go before 1.13.13 and 1.14.x before 1.14.5, Certificate.Verify may lack a check on the VerifyOptions.KeyUsages EKU requirements if VerifyOptions.Roots equals nil and the installation is on Windows. Thus, X.509 certificate verification is incomplete...