CVEvulnerability
CVE-2021-23981
8.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-03-31
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:P
- Weaknesses
- CWE-787
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.
Affected configurations
• mozilla firefox (< 87.0)
• mozilla firefox esr (< 78.9)
• mozilla thunderbird (< 78.9)
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1692832 Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2021-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-11/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-12/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1692832 Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2021-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-11/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-12/ Vendor Advisory