CVE-2021-23981 Information

Description

A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9 Firefox < 87 and Thunderbird < 78.9.

CVSS Vector

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

Reference

https://www.mozilla.org/security/advisories/mfsa2021-11/ https://www.mozilla.org/security/advisories/mfsa2021-12/ https://www.mozilla.org/security/advisories/mfsa2021-10/ https://bugzilla.mozilla.org/show_bug.cgi?id=1692832

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

8.1