Mozilla Firefox before 43.0 does not properly restrict the availability of IFRAME Resource Timing API times, which allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via crafted JavaScript code that leverages history.back and performance.getEntries calls, a related issue to CVE-2015-1300.
lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.html
lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00089.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.html
lists.opensuse.org/opensuse-updates/2015-12/msg00104.html
lists.opensuse.org/opensuse-updates/2016-02/msg00007.html
lists.opensuse.org/opensuse-updates/2016-02/msg00008.html
www.mozilla.org/security/announce/2015/mfsa2015-136.html
www.securityfocus.com/bid/79280
www.securitytracker.com/id/1034426
www.ubuntu.com/usn/USN-2833-1
bugzilla.mozilla.org/show_bug.cgi?id=1185256
github.com/w3c/resource-timing/issues/29
security.gentoo.org/glsa/201512-10