Apple QuickTime Invalid Public Movie Atom Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple’s QuickTime player. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists within how the application handles a malformed atom type when playing a movie encoded with uncompressed audio. When decoding the audio sample the application will use a 16-bit length for allocating a buffer, and a different one for initializing it. This can cause memory corruption which can lead to code execution under the context of the application.