Integer overflow in CoreGraphics in Apple Mac OS X 10.4.11, 10.5.2, and 10.5.4 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a PDF file with a long Type 1 font, which triggers a heap-based buffer overflow.
https://exchange.xforce.ibmcloud.com/vulnerabilities/44128
http://www.vupen.com/english/advisories/2008/2268
http://www.securitytracker.com/id?1020604
http://www.securityfocus.com/bid/30489
http://www.securityfocus.com/bid/30483
http://secunia.com/advisories/31326
http://lists.apple.com/archives/security-announce//2008/Jul/msg00003.html
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=730