CVE-2021-29968

Published: Jun 24, 2021Modified: Jun 17, 2026

8.1

Vector

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

Exploitability: 2.8 / Impact: 5.2

Source: NVD

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.

Affected (1)

Products: Mozilla: Firefox

Mozilla

1 product

Firefox

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mozilla Firefox	Before 89.0.1

Running on/with	Platform Versions
Microsoft Windows	All versions

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (4)

https://bugzilla.mozilla.org/show_bug.cgi?id=1712047

Source: security@mozilla.org

Issue TrackingPermissions RequiredVendor Advisory

https://www.mozilla.org/security/advisories/mfsa2021-27/

Source: security@mozilla.org

Release NotesVendor Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1712047

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPermissions RequiredVendor Advisory

https://www.mozilla.org/security/advisories/mfsa2021-27/

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

Timeline

No history available yet.