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Adobe Shockwave Player Memory Corruption Vulnerability



Adobe Shockwave Player is a popular Web browser plug-in. It is available for multiple Web browsers and platforms, including Windows, and MacOS. Shockwave Player enables Web browsers to display rich multimedia content in the form of Shockwave videos. For more information, see the vendor's site found at the following link:


Remote exploitation of a memory corruption vulnerability in Adobe Systems Inc.'s Shockwave Player could allow an attacker to execute arbitrary code with the privileges of the current user.

The vulnerability takes place during the processing of a malicious Adobe Director file. A malicious user could cause a memory corruption by including malformed data in a chunk. This condition may lead to arbitrary code execution.


Exploitation could result in the execution of arbitrary code with the privileges of the user viewing the Web page. To exploit this vulnerability, a targeted user must load a malicious Adobe Director file created by an attacker. An attacker typically accomplishes this via social engineering or injecting content into a compromised, trusted site.


iDefense has confirmed the existence of this vulnerability in Shockwave Player version and version (the latest version at the time of testing). A full list of vulnerable Adobe products can be found in Adobe Security Bulletin APSB11-01.


The killbit for the Shockwave Player ActiveX control can be set by creating the following registry key:

HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX Compatibility{233C1507-6A77-46A4-9443-F871F945D258}

Under this key create a new DWORD value called "Compatibility Flags" and set its hexadecimal value to 400.

To re-enable Shockwave Player set the "Compatibility Flags" value to 0.


Adobe has addressed this issue with an update. Further details and patches can be found at the following URL.


The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2010-4187 to this issue. This is a candidate for inclusion in the CVE list (, which standardizes names for security problems.


11/03/2010 Initial Vendor Notification
11/03/2010 Initial Vendor Reply
02/08/2011 Coordinated Public Disclosure


This vulnerability was reported to iDefense by Andrzej Dyjak.

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Copyright © 2011 Verisign, Inc.

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