CVE-2021-29970 Information

Description

A malicious webpage could have triggered a use-after-free memory corruption and a potentially exploitable crash. This bug could only be triggered when accessibility was enabled.. This vulnerability affects Thunderbird < 78.12 Firefox ESR < 78.12 and 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=1709976 https://www.mozilla.org/security/advisories/mfsa2021-30/ https://www.mozilla.org/security/advisories/mfsa2021-29/ 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