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                     Secunia Research 09/04/2010

               - VMWare VMnc Codec HexTile Encoding - 
             - Two Integer Truncation Vulnerabilities -

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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 

* VMWare Workstation version 6.5.3 build 185404.

NOTE: Other products and versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System access
Where:  Remote

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3) Vendor's Description of Software 

"VMware Workstation makes it simple to create and run multiple virtual
machines on your desktop or laptop computer. ... You can even use 
Workstation 6.5 to record and play video files ..."

Product Link:
http://www.vmware.com/products/ws/ 

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4) Description of Vulnerability

Secunia Research has discovered two vulnerabilities in multiple VMWare
products, which can be exploited by malicious people to compromise 
a vulnerable system.

The vulnerabilities are caused by two integer truncation errors in 
vmnc.dll when processing HexTile encoded video chunks and can be 
exploited to cause heap-based buffer overflows.

Successful exploitation may allow execution of arbitrary code by 
tricking a user into opening a specially crafted AVI file.

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5) Solution 

Update to version 6.5.4 build 246459.

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6) Time Table 

14/09/2009 - Vendor notified.
14/09/2009 - Vendor response.
09/04/2010 - Public disclosure.

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7) Credits 

Discovered by Alin Rad Pop, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2009-1565 for the vulnerabilities.

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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 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/2009-37/ 

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

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