Apple QuickTime before 7.6.2 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted image description atoms in an Apple video file, related to a "sign extension issue."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16159
https://exchange.xforce.ibmcloud.com/vulnerabilities/50895
http://www.vupen.com/english/advisories/2009/1469
http://www.securitytracker.com/id?1022314
http://www.securityfocus.com/bid/35166
http://support.apple.com/kb/HT3591
http://secunia.com/advisories/35091
http://lists.apple.com/archives/security-announce/2009/Jun/msg00000.html