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.
Apple has issued an update to correct this vulnerability. More details can be found at: