QuickTime: access to uninitialized memory locations allows arbitrary code execution via a crafted MP4 file (CVE-2011-3458)
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.
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