The history implementation in WebKit, as used in Apple Safari before 6.2.6, 7.x before 7.1.6, and 8.x before 8.0.6, allows remote attackers to bypass the Same Origin Policy and read arbitrary files via a crafted web site.
https://support.apple.com/HT204826
http://www.ubuntu.com/usn/USN-2937-1
http://www.securitytracker.com/id/1032270
http://www.securityfocus.com/bid/74527
http://support.apple.com/kb/HT204941
http://lists.opensuse.org/opensuse-updates/2016-03/msg00132.html
http://lists.opensuse.org/opensuse-updates/2016-03/msg00054.html
http://lists.apple.com/archives/security-announce/2015/May/msg00000.html
http://lists.apple.com/archives/security-announce/2015/Jun/msg00001.html