Race condition in the get implementation in the ServiceWorkerManager class in the Service Worker subsystem in Mozilla Firefox before 46.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) via a crafted web site.
lists.opensuse.org/opensuse-security-announce/2016-05/msg00005.html
lists.opensuse.org/opensuse-updates/2016-05/msg00038.html
www.mozilla.org/security/announce/2016/mfsa2016-42.html
www.securitytracker.com/id/1035692
www.ubuntu.com/usn/USN-2936-1
www.ubuntu.com/usn/USN-2936-2
www.ubuntu.com/usn/USN-2936-3
bugzilla.mozilla.org/show_bug.cgi?id=1261776
security.gentoo.org/glsa/201701-15