A race condition could have allowed bypassing the fullscreen notification which could have lead to a fullscreen window spoof being unnoticed.<br>*This bug only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Link | Tags |
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https://www.mozilla.org/security/advisories/mfsa2022-01/ | vendor advisory |
https://www.mozilla.org/security/advisories/mfsa2022-02/ | vendor advisory |
https://www.mozilla.org/security/advisories/mfsa2022-03/ | vendor advisory |
https://bugzilla.mozilla.org/show_bug.cgi?id=1735071 | issue tracking |