A VideoStreamEncoder may have been freed in a race condition with VideoBroadcaster::AddOrUpdateSink, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.
| Software | From | Fixed in |
|---|---|---|
| mozilla / firefox | - | 78.0 |
| opensuse / leap | 15.1 | 15.1.x |
| opensuse / leap | 15.2 | 15.2.x |