Vulnerability CVE-2021-23994
Published: 2021-06-24

Description:
A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Type:

CWE-909

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Mozilla -> Firefox 
Mozilla -> Firefox esr 
Mozilla -> Thunderbird 

 References:
https://bugzilla.mozilla.org/show_bug.cgi?id=1699077
https://www.mozilla.org/security/advisories/mfsa2021-15/
https://www.mozilla.org/security/advisories/mfsa2021-16/
https://www.mozilla.org/security/advisories/mfsa2021-14/
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