Vulnerability Monitor

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CVE-2021-23981

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.

Published

2021-03-31T14:15:18.907

Last Modified

2024-11-21T05:52:08.893

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

4.9

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 87.0	Yes
Application	mozilla	firefox_esr	< 78.9	Yes
Application	mozilla	thunderbird	< 78.9	Yes

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1692832 Issue Tracking ([email protected])
https://www.mozilla.org/security/advisories/mfsa2021-10/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2021-11/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2021-12/ Vendor Advisory ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=1692832 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2021-10/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2021-11/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2021-12/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)