The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain privileges, via vectors involving crafted JavaScript code and a native setter, as exploited in the wild in August 2015.
lists.opensuse.org/opensuse-security-announce/2015-08/msg00009.html
lists.opensuse.org/opensuse-security-announce/2015-08/msg00010.html
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
rhn.redhat.com/errata/RHSA-2015-1581.html
www.mozilla.org/security/announce/2015/mfsa2015-78.html
www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
www.securityfocus.com/bid/76249
www.securitytracker.com/id/1033216
www.ubuntu.com/usn/USN-2707-1
blog.mozilla.org/security/2015/08/06/firefox-exploit-found-in-the-wild/
bugzilla.mozilla.org/show_bug.cgi?id=1178058
bugzilla.mozilla.org/show_bug.cgi?id=1179262
security.gentoo.org/glsa/201512-10
www.exploit-db.com/exploits/37772/