CVE-2021-29982 Information

Description

Due to incorrect JIT optimization we incorrectly interpreted data from the wrong type of object resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and Thunderbird < 91.

CVSS Vector

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

Reference

https://www.mozilla.org/security/advisories/mfsa2021-33/ https://www.mozilla.org/security/advisories/mfsa2021-36/ https://bugzilla.mozilla.org/show_bug.cgi?id=1715318 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

NONE

Base Score

NONE

Base Severity

6.5