CVE-2021-29968

high

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.

References

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

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

Details

Source: MITRE

Published: 2021-06-24

Updated: 2021-06-25

Type: CWE-125

Risk Information

CVSS v2

Base Score: 5.8

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:P

Impact Score: 4.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.1

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

Impact Score: 5.2

Exploitability Score: 2.8

Severity: HIGH