Apple QuickTime Player H.264 Parsing Heap Corruption Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple QuickTime. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists in the parsing of MP4 video files in QuickTimeH264.qtx. A maliciously crafted MDAT atom can cause a heap corruption resulting in the execution of arbitrary code.