CVE Vulnerabilities

CVE-2021-44532

Improper Certificate Validation

Published: Feb 24, 2022 | Modified: Oct 05, 2022
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the –security-revert command-line option.

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

Name Vendor Start Version End Version
Node.js Nodejs * 12.22.9 (excluding)
Node.js Nodejs 14.0.0 (including) 14.18.3 (excluding)
Node.js Nodejs 16.0.0 (including) 16.13.2 (excluding)
Node.js Nodejs 17.0.0 (including) 17.3.1 (excluding)

Potential Mitigations

References