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                     Secunia Research 30/06/2010

   - Adobe Reader GIF Image Parsing Array-Indexing Vulnerability -

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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

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1) Affected Software 

* Adobe Reader 9.3.2

NOTE: Other versions may also be affected.

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2) Severity 

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

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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/

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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.

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5) Solution 

Update to version 8.2.3 or 9.3.3.

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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.

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7) Credits 

Discovered by Carsten Eiram, Secunia Research.

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8) References

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

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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
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Secunia believes that it is important to support the community and to
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Secunia regularly hires new skilled team members. Check the URL below
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Secunia offers a FREE mailing list called Secunia Security Advisories:

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

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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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