Zero Day Initiative Advisory 12-078 - 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 within the way Apple QuickTime handles file with the Sorenson v3 Codec. When parsing the data inside the svq3 stream QuickTime does not verify the value for the mb_skip_run value it reads from the data. This value is used later as a loop counter to write data to a heap allocation without boundary checking. This can result in a heap based buffer overflow that can result in remote code execution under the context of the user running the application.
61ff5ba569ae6822a11c20b7069612ed862249b5319f04436e627d8046c35a87Apple Security Advisory 2012-05-15-1 - QuickTime 7.7.2 is now available and addresses multiple security issues. Multiple stack overflows existed in QuickTime's handling of TeXML files. A heap overflow existed in QuickTime's handling of text tracks. A heap buffer overflow existed in the handling of H.264 encoded movie files. An uninitialized memory access issue existed in the handling of MP4 encoded files. For OS X Lion systems, this issue is addressed in OS X Lion v10.7.3. For Mac OS X v10.6 systems, this issue is addressed in Security Update 2012-001. Various other issues were also addressed.
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