A vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Shockwave. 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 code responsible for parsing a DEMX RIFF chunk within Director files. The logic within the TextXtra.x32 module fails to account for a specific condition and can be made to misallocate a buffer on the heap. By crafting specific values within DEMX substructures an attacker can corrupt memory leading to arbitrary code execution under the context of the user running the browser.
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