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Adobe Reader GIF Image Parsing Array-Indexing Vulnerability

Adobe Reader GIF Image Parsing Array-Indexing Vulnerability
Posted Jul 1, 2010
Authored by Carsten Eiram | Site secunia.com

Secunia Research has discovered a vulnerability in Adobe Reader, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused by an array-indexing error in AcroForm.api when parsing GIF image data. This can be exploited to bypass a size check to cause a heap-based buffer overflow when a specially crafted PDF file is opened. Successful exploitation may allow execution of arbitrary code. Version 9.3.2 is affected.

tags | advisory, overflow, arbitrary
advisories | CVE-2010-2206
SHA-256 | 132e0aa8ecbd7c96905b34789b2bbad53e50f5a3acad72b9b20a5a3a66b81d08

Adobe Reader GIF Image Parsing Array-Indexing Vulnerability

Change Mirror Download
====================================================================== 

Secunia Research 30/06/2010

- Adobe Reader GIF Image Parsing Array-Indexing Vulnerability -

======================================================================
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

======================================================================
1) Affected Software

* Adobe Reader 9.3.2

NOTE: Other versions may also be affected.

======================================================================
2) Severity

Rating: Highly critical
Impact: System access
Where: From remote

======================================================================
3) Vendor's Description of Software

"Adobe Reader software is the global standard for electronic document
sharing. It is the only PDF file viewer that can open and interact
with all PDF documents."

Product Link:
http://www.adobe.com/products/reader/

======================================================================
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Adobe Reader, which
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused by an array-indexing error in AcroForm.api
when parsing GIF image data. This can be exploited to bypass a size
check to cause a heap-based buffer overflow when a specially crafted
PDF file is opened.

Successful exploitation may allow execution of arbitrary code.

======================================================================
5) Solution

Update to version 8.2.3 or 9.3.3.

======================================================================
6) Time Table

14/05/2010 - Vendor notified.
18/05/2010 - Vendor response.
24/06/2010 - Vendor provides status update.
29/06/2010 - Fixed versions issued.
30/06/2010 - Public disclosure.

======================================================================
7) Credits

Discovered by Carsten Eiram, Secunia Research.

======================================================================
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2010-2206 for the vulnerability.

======================================================================
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

======================================================================
10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-88/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================
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