CVE-2021-44533

Description

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 did not handle multi-value Relative Distinguished Names correctly. Attackers could craft certificate subjects containing a single-value Relative Distinguished Name that would be interpreted as a multi-value Relative Distinguished Name, for example, in order to inject a Common Name that would allow bypassing the certificate subject verification.Affected versions of Node.js that do not accept multi-value Relative Distinguished Names and are thus not vulnerable to such attacks themselves. However, third-party code that uses node's ambiguous presentation of certificate subjects may be vulnerable.

How to fix CVE-2021-44533

To remediate CVE-2021-44533, upgrade the affected package to a fixed version below.

• —upgrade to 12.22.10-r0 or later
• —upgrade to 12.22.9 or later
• —upgrade to 12.22.9 or later
• —upgrade to 12.22.12~dfsg-1~deb11u1 or later

Is CVE-2021-44533 being exploited?

Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

• from 0, < 12.22.10-r0
• from 0, < 12.22.9, >= 14.0.0, < 14.18.3, >= 16.0.0, < 16.13.2, >= 17.0.0, < 17.3.1
• from 0, < 12.22.9, >= 14.0.0, < 14.18.3, >= 16.0.0, < 16.13.2, >= 17.0.0, < 17.3.1
• from 0, < 12.22.12~dfsg-1~deb11u1

CVSS scores

References (9)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2021-44533
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-44533
• WEBhackerone.com/reports/1429694
• WEBnodejs.org/en/blog/vulnerability/jan-2022-security-releases/
• WEB