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.
lists.apple.com/archives/security-announce/2014/Dec/msg00000.html
lists.apple.com/archives/security-announce/2014/Nov/msg00001.html
lists.apple.com/archives/security-announce/2015/Jan/msg00000.html
lists.apple.com/archives/security-announce/2015/Jan/msg00001.html
lists.apple.com/archives/security-announce/2015/Jun/msg00006.html
secunia.com/advisories/62503
support.apple.com/HT204245
support.apple.com/HT204246
support.apple.com/kb/HT6596
www.securityfocus.com/bid/71144
www.securitytracker.com/id/1031230
exchange.xforce.ibmcloud.com/vulnerabilities/98784
support.apple.com/en-us/HT204419
support.apple.com/en-us/HT6591
support.apple.com/kb/HT204949