The js::jit::AssemblerX86Shared::lock_addl function in the JavaScript implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to cause a denial of service (application crash) by leveraging the use of shared memory and accessing (1) an Atomics object or (2) a SharedArrayBuffer object.
lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html
lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html
lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.html
lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
lists.opensuse.org/opensuse-updates/2015-08/msg00030.html
lists.opensuse.org/opensuse-updates/2015-08/msg00031.html
rhn.redhat.com/errata/RHSA-2015-1586.html
www.debian.org/security/2015/dsa-3333
www.mozilla.org/security/announce/2015/mfsa2015-87.html
www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
www.securitytracker.com/id/1033247
www.ubuntu.com/usn/USN-2702-1
www.ubuntu.com/usn/USN-2702-2
www.ubuntu.com/usn/USN-2702-3
bugzilla.mozilla.org/show_bug.cgi?id=1171540
security.gentoo.org/glsa/201605-06