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.
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/mfsa2020-24/ | vendor advisory |
https://bugzilla.mozilla.org/show_bug.cgi?id=1639734 | issue tracking exploit vendor advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html | mailing list third party advisory vendor advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html | mailing list third party advisory vendor advisory |
https://security.gentoo.org/glsa/202007-10 | third party advisory vendor advisory |