Technical Description

Multiple vulnerabilities have been identified in Winamp, which could be exploited by remote attackers to execute arbitrary commands.

The first flaw is due to a buffer overflow error when processing a specially crafted playlist (".pls" file) containing a malformed "File" tag, which could be exploited by remote attackers to execute arbitrary commands and take complete control of an affected system without any user-interaction via a specially crafted web page.

The second issue is due to a stack overflow error when processing malformed "m3u" or "pls" files, which could be exploited by remote attackers to compromise a vulnerable system.

The third vulnerability is due to an error when processing playlists containing a specially crafted ".wma" filename, which could be exploited by attackers to execute arbitrary commands.



Affected Products

Nullsoft Winamp version 5.12 and prior

Solution

Upgrade to Winamp version 5.13 :
http://www.winamp.com/player/

References

http://www.vupen.com/english/advisories/2006/0361
http://www.frsirt.com/exploits/20060129.winamp0day.c.php
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=377
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=378

Credits

Vulnerabilities reported by ATmaCA, Alan Mccaig (b0f) and Ruben Santamarta.

ChangeLog

2006-01-29 : Initial release
2006-01-30 : Updated Solution
2006-02-01 : Updated Advisory

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