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VLC Media Player WAV Processing Integer Overflow



Secunia Research: VLC Media Player WAV Processing Integer Overflow
Secunia Research: 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:

http://corporate.secunia.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.

http://secunia.com/ 

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://corporate.secunia.com/secunia_research/33/ 

Secunia regularly hires new skilled team members. Check the URL below 
to see currently vacant positions:

http://secunia.com/secunia_vacancies/ 

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/ 

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2008-29/ 

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

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