Buffer overflow in CoreMedia, as used in Apple iTunes before 10.5, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted movie file with H.264 encoding.
lists.apple.com/archives/Security-announce/2011//Oct/msg00000.html
lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
osvdb.org/76374
support.apple.com/kb/HT4981
support.apple.com/kb/HT5002
support.apple.com/kb/HT5016
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17228