An uninitialized memory access issue exists in QuickTime's handling of JP2 images. Viewing a maliciously crafted JP2 image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved validation of JP2 images. For Mac OS X v10.6 systems, this issue is addressed in Mac OS X v10.6.5. Credit to Damian Put and Procyun, working with TippingPoint's Zero Day Initiative for reporting this issue.
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