Apple QuickTime before 7.6.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted H.264 movie file.
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
http://lists.apple.com/archives/security-announce/2009/Sep/msg00002.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/53127
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5467
http://support.apple.com/kb/HT3859