Secunia Research: Winamp Ultravox Streaming Metadata Parsing Buffer Overflows

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                     Secunia Research 18/01/2008

   - Winamp Ultravox Streaming Metadata Parsing Buffer Overflows -

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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 

Winamp 5.21, 5.5, and 5.51.

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System compromise
Where:  Remote

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3) Vendor's Description of Software 

"Winamp is more than just a player. It's your window to the multimedia
world. From MP3s to streaming video, Winamp is the one place you go to
feed your audio/video habit.".

Product Link:
http://www.winamp.com/

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4) Description of Vulnerability

Secunia Research has discovered two vulnerabilities in Winamp, which
can be exploited by malicious people to compromise a user's system.

The vulnerablities are caused due to boundary errors in in_mp3.dll
within the construction of stream titles when parsing Ultravox
streaming metadata. This can be exploited to cause stack-based buffer
overflows via overly long "<artist>" and "<name>" tag values in the
<metadata> section.

Successful exploitation allows execution of arbitrary code.

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5) Solution 

Update to version 5.52.

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6) Time Table 

04/01/2008 - Vendor notified.
04/01/2008 - Vendor response.
18/01/2008 - Public disclosure.

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7) Credits 

Discovered by Carsten Eiram, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2008-0065 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:

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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/2008-2/

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

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