Use-after-free vulnerability in WebKit, as used in Apple OS X before 10.10.1, allows remote attackers to execute arbitrary code via crafted page objects in an HTML document.
https://support.apple.com/kb/HT204949
https://support.apple.com/en-us/HT6591
https://support.apple.com/en-us/HT204419
https://exchange.xforce.ibmcloud.com/vulnerabilities/98784
http://www.securitytracker.com/id/1031230
http://www.securityfocus.com/bid/71144
http://support.apple.com/kb/HT6596
http://support.apple.com/HT204246
http://support.apple.com/HT204245
http://secunia.com/advisories/62503
http://lists.apple.com/archives/security-announce/2015/Jun/msg00006.html
http://lists.apple.com/archives/security-announce/2015/Jan/msg00001.html
http://lists.apple.com/archives/security-announce/2015/Jan/msg00000.html
http://lists.apple.com/archives/security-announce/2014/Nov/msg00001.html
http://lists.apple.com/archives/security-announce/2014/Dec/msg00000.html