CVE-2021-44532

Summary

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.

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://www.oracle.com/security-alerts/cpuapr2022.html ↗

Additional information

• NVD record
• https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch
• https://nodejs.org/en/blog/vulnerability/jan-2022-security-releases/Advisory
• https://nodejs.org/en/blog/vulnerability/jan-2022-security-releases/Advisory
• https://hackerone.com/reports/1429694Advisory
• https://hackerone.com/reports/1429694Advisory
• https://security.netapp.com/advisory/ntap-20220325-0007/Advisory
• https://www.debian.org/security/2022/dsa-5170Advisory
• https://www.oracle.com/security-alerts/cpujul2022.htmlAdvisory