CVE-2021-4128

Description

When transitioning in and out of fullscreen mode, a graphics object was not correctly protected; resulting in memory corruption and a potentially exploitable crash.
*This bug only affects Firefox on MacOS. Other operating systems are unaffected.*. This vulnerability affects Firefox < 95.

Affected Platforms

Weakness Type

CWE-416, CWE-416

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1735852
• https://www.mozilla.org/security/advisories/mfsa2021-52/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1735852
• https://www.mozilla.org/security/advisories/mfsa2021-52/