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Date: Tue, 11 May 2010 23:47:35 -0400
From: iDefense Labs <>
Subject: iDefense Security Advisory 05.11.10: Abobe
 Shockwave Player Heap Memory Indexing Vulnerability

iDefense Security Advisory 05.11.10
May 11, 2010


Adobe Shockwave Player is a popular Web browser plugin. 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:<BR> <BR>


Remote exploitation of a heap memory indexing vulnerability in Adobe
Systems Inc.'s Shockwave Player could allow an attacker to execute
arbitrary code with the privileges of the current user. <BR> <BR> The
vulnerability takes place during the processing of a certain malformed
file. A function calculates an offset to be used within a memory mapped
file and returns the offset value. The return value is not checked. This
can lead to a condition where an attacker is able to overwrite memory
outside the bounds of the allocated memory map.


Exploitation of this vulnerability results 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 file created
by an attacker. An attacker typically accomplishes this via social
engineering or injecting content into a compromised, trusted site. <BR>
<BR> Adobe Shockwave Player implements a custom memory management system
for object allocation. Due to the design of the memory allocator, an
attacker is able to predict the distance of objects within a memory
map. This condition can help facilitate reliable exploitation of this


iDefense has confirmed the existence of this vulnerability in the latest
version of Shockwave Player at the time of testing, version 11.5.6r606.
Shockwave Player and earlier versions for Windows and
Macintosh are vulnerable.


The killbit for the Shockwave Player ActiveX control can be set by
creating the following registry key:<BR> <BR>
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX
Compatibility\{233C1507-6A77-46A4-9443-F871F945D258} Under this key
create a new DWORD value called "Compatibility Flags" and set its
hexadecimal value to 400. <BR> <BR> To re-enable Shockwave Player set
the "Compatibility Flags" value to 0.


Adobe has released a fix which addresses this issue. Information about
downloadable vendor updates can be found by clicking on the URLs shown.


The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2010-0129 to this issue. This is a candidate for inclusion in
the CVE list (, which standardizes names for
security problems.


03/03/2010  Initial Vendor Notification
03/03/2009  Initial Vendor Reply
05/11/2010  Coordinated Public Disclosure


The discoverer of this vulnerability wishes to remain anonymous.

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Copyright © 2010 iDefense, Inc.

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Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
 There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct,
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