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Adobe Shockwave TextXtra Invalid Seek Remote Code Execution Vulnerability

TPTI-11-02: February 8th, 2011


Affected Vendors

Affected Products

Vulnerability Details

This 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.

Vendor Response

Adobe has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2010-12-16 - Vulnerability reported to vendor
    2011-02-08 - Coordinated public release of advisory


This vulnerability was discovered by: