When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0. Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12420 Reference (s):
- GENTOO:GLSA-202007-09
- URL: https://security.gentoo.org/glsa/202007-09
- GENTOO:GLSA-202007-10
- URL: https://security.gentoo.org/glsa/202007-10
- https://bugzilla.mozilla.org/show_bug.cgi?id=1643437