Apple Security Advisory 2011-10-26-1 - QuickTime 7.7.1 is now available and addresses memory disclosure, arbitrary code execution, script injection, and various other vulnerabilities.
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Zero Day Initiative Advisory 11-312 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple QuickTime Player. 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 within how the application parses the atom hierarchy within a QuickTime movie file. In a certain situation the application will pass execution to another function for handling the atom, however, will pass the incorrect number of arguments. Due to this, a variable will be treated as a pointer. This can lead to code execution under the context of the application.
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