CVE-2021-23981
HIGHFirefox < 87.0 and Firefox ESR < 78.9 - Out-of-bounds Write via WebGL Texture Upload
Title source: llmDescription
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 (4)
Core 4
Core References
Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-10/
Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-12/
Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-11/
Issue Tracking x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1692832
Scores
CVSS v3
8.1
EPSS
0.0037
EPSS Percentile
58.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Details
CWE
CWE-787
Status
published
Products (3)
mozilla/firefox
< 87.0
mozilla/firefox_esr
< 78.9
mozilla/thunderbird
< 78.9
Published
Mar 31, 2021
Tracked Since
Feb 18, 2026