Heap-based buffer overflow in the Ins_SHZ function in ttinterp.c in FreeType 2.4.3 and earlier allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted SHZ bytecode instruction, related to TrueType opcodes, as demonstrated by a PDF document with a crafted embedded font.
http://www.vupen.com/english/advisories/2011/0246
http://www.vupen.com/english/advisories/2010/3046
http://www.ubuntu.com/usn/USN-1013-1
http://www.securitytracker.com/id?1024767
http://www.securityfocus.com/bid/44643
http://www.mandriva.com/security/advisories?name=MDVSA-2010:236
http://www.debian.org/security/2011/dsa-2155
http://support.apple.com/kb/HT4581
http://support.apple.com/kb/HT4456
http://security-tracker.debian.org/tracker/CVE-2010-3814
http://secunia.com/advisories/48951
http://secunia.com/advisories/43138
http://secunia.com/advisories/42314
http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
http://lists.apple.com/archives/security-announce/2010//Nov/msg00003.html