In short
- CVE-2020-14039 is a MEDIUM (CVSS 5.3) vulnerability affecting stdlib, go (golang).
- Chance of exploitation in the next 30 days (EPSS): 1.8%, higher than 78.0% of all vulnerabilities.
- Fix: update to 1.14.5, 1.13.13 or later.
| Package | Affected versions | Patched versions |
|---|
| stdlib Go | ≥ 1.14.0-0, < 1.14.5< 1.13.13
| 1.14.51.13.13
|
| go | ≥ 1.14.0, < 1.14.5< 1.13.13
| 1.14.51.13.13
|
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.
NVD description
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.
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