CoreGraphics in Apple OS X before 10.10 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted PDF document.
https://exchange.xforce.ibmcloud.com/vulnerabilities/100495
http://www.securitytracker.com/id/1031650
http://support.apple.com/HT204244
http://lists.apple.com/archives/security-announce/2015/Jan/msg00003.html