| Name | CVE-2021-44532 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5170-1 |
| Debian Bugs | 1004177 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| nodejs (PTS) | jessie | 0.10.29~dfsg-2 | vulnerable |
| stretch | 4.8.2~dfsg-1 | vulnerable |
| buster (security), buster, buster (lts) | 10.24.0~dfsg-1~deb10u4 | vulnerable |
| bullseye | 12.22.12~dfsg-1~deb11u4 | fixed |
| bullseye (security) | 12.22.12~dfsg-1~deb11u5 | fixed |
| bookworm | 18.19.0+dfsg-6~deb12u2 | fixed |
| bookworm (security) | 18.19.0+dfsg-6~deb12u1 | fixed |
| sid, trixie | 20.17.0+dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| nodejs | source | jessie | (unfixed) | end-of-life | | |
| nodejs | source | stretch | (unfixed) | end-of-life | | |
| nodejs | source | bullseye | 12.22.12~dfsg-1~deb11u1 | | DSA-5170-1 | |
| nodejs | source | (unstable) | 12.22.9~dfsg-1 | | | 1004177 |
Notes
[buster] - nodejs <ignored> (Minor issue, requires MITM and uncommon CA, invasive/hard to backport)
[stretch] - nodejs <end-of-life> (Nodejs in stretch not covered by security support)
https://nodejs.org/en/blog/vulnerability/jan-2022-security-releases/#certificate-verification-bypass-via-string-injection-medium-cve-2021-44532
https://hackerone.com/reports/1429694
https://github.com/nodejs/node/commit/19873abfb24dce75ffff042efe76dc5633052677 (v12.x)
https://github.com/nodejs/node/commit/a5c7843cab6fdb9c845edadc2a7b9b30e02c8bf2 (v12.x)