Heap-based buffer overflow in Apple QuickTime before 7.6.9 on Windows allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted Track Header (aka tkhd) atoms.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15625
http://zerodayinitiative.com/advisories/ZDI-10-258/
http://www.securitytracker.com/id?1024830
http://support.apple.com/kb/HT4447
http://secunia.com/secunia_research/2010-72/
http://lists.apple.com/archives/security-announce/2010//Dec/msg00000.html