CVE-2021-29972 Information

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A use-after-free vulnerability was found via testing and traced to an out-of-date Cairo library.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.

CVSS Vector

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

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1696816 https://www.mozilla.org/security/advisories/mfsa2021-28/ https://security.gentoo.org/glsa/202202-03

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8