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                     Secunia Research 09/04/2009

        - VMWare VMnc Codec HexTile Encoding Buffer Overflow -

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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 a vulnerability in multiple VMWare 
products, which can be exploited by malicious people to compromise a 
vulnerable system.

The vulnerability is caused by a boundary error in vmnc.dll when 
processing HexTile encoded video chunks and can be exploited to cause
a heap-based buffer overflow.

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-2009-1564 for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
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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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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2009-36/

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

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