CVE-2021-29972

HIGH

Firefox < 90.0 - Use-After-Free via Out-of-Date Cairo Library

Title source: llm
STIX 2.1

Description

A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. This vulnerability affects Firefox < 90.

References (3)

Core 3
Core References
Exploit, Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1696816
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202202-03

Scores

CVSS v3 8.8
EPSS 0.0041
EPSS Percentile 61.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (1)
mozilla/firefox < 90.0
Published Aug 05, 2021
Tracked Since Feb 18, 2026