Heap-based buffer overflow in QuickTime in Apple Mac OS X before 10.6.3 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted movie file with M-JPEG encoding, which causes QuickTime to calculate a buffer size using height and width fields, but to use a different field to control the length of a copy operation.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6673
http://www.zerodayinitiative.com/advisories/ZDI-10-037
http://www.securityfocus.com/archive/1/510511/100/0/threaded
http://support.apple.com/kb/HT4077
http://lists.apple.com/archives/security-announce/2010//Mar/msg00002.html
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html