Multiple race conditions in dom/media/systemservices/CamerasChild.cpp in the WebRTC implementation in Mozilla Firefox before 45.0 on Windows might allow remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors.
https://security.gentoo.org/glsa/201605-06
https://bugzilla.mozilla.org/show_bug.cgi?id=1230768
http://www.securitytracker.com/id/1035215
http://www.securityfocus.com/bid/84220
http://www.mozilla.org/security/announce/2016/mfsa2016-32.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00029.html
http://hg.mozilla.org/releases/mozilla-release/rev/bafc86c12e63