Secunia Research: VMWare VMnc Codec HexTile Encoding Two Integer Truncation Vulnerabilities

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

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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