Constructing audio sinks could have lead to a race condition when playing audio files and closing windows. This could have lead to a use-after-free causing a potentially exploitable crash. 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 |
|---|---|
| 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=1745874 | issue tracking exploit vendor advisory |