Secunia Research Advisory

VLC Media Player WAV Processing Integer Overflow


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                     Secunia Research 02/07/2008

        - VLC Media Player WAV Processing Integer 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 

* VLC Media Player 0.8.6h on Windows

NOTE: Prior 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 

"VLC media player is a highly portable multimedia player for various 
audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, ...) 
as well as DVDs, VCDs, and various streaming protocols."

Product Link:
http://www.videolan.org/vlc/

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4) Description of Vulnerability

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

The vulnerability is caused due to an integer overflow error within 
the "Open()" function in modules/demux/wav.c. This can be exploited to
cause a heap-based buffer overflow via a specially crafted WAV file 
having an overly large "fmt" chunk.

Successful exploitation may allow execution of arbitrary code.

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5) Solution 

Update to version 0.8.6i, which should be available soon.

Do not open untrusted WAV files.

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6) Time Table 

27/06/2008 - Vendor notified.
30/06/2008 - Vendor response.
02/07/2008 - 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-2008-2430 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:

https://www.flexera.com/

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.

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.

Secunia regularly hires new skilled team members. Check the URL below 
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https://www.flexera.com/company/careers

Secunia offers a FREE mailing list called Secunia Security Advisories:

https://www.flexera.com/secunia_security_advisories/ 

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10) Verification 

Please verify this advisory by visiting the Secunia website:
https://www.flexera.com/about-us/secunia-research/advisories/sr-2008-29.html

Complete list of vulnerability reports published by Secunia Research:
https://www.flexera.com/about-us/secunia-research/advisories/

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