CVE-2021-29968 Information

Description

When drawing text onto a canvas with WebRender disabled an out of bounds read could occur. This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox < 89.0.1.

CVSS Vector

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

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1712047 https://www.mozilla.org/security/advisories/mfsa2021-27/

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