module: std
package: crypto/x509
versions:
  - fixed: go1.13.13
  - fixed: go1.14.5
  - fixed: go1.15.0
description: |
    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.
published: 2022-02-17T17:46:03Z
cves:
  - CVE-2020-14039
credit: Niall Newman
symbols:
  - Certificate.systemVerify
os:
  - windows
links:
    pr: https://go.dev/cl/242597
    commit: https://go.googlesource.com/go/+/82175e699a2e2cd83d3aa34949e9b922d66d52f5
    context:
      - https://go.dev/issue/39360
      - https://groups.google.com/g/golang-announce/c/XZNfaiwgt2w