CVE-2021-23981

high

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.

References

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

Details

Source: MITRE

Published: 2021-03-31

Updated: 2022-05-03

Type: CWE-787

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