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New winamp m3u/pls .WMA & .M3U Extension overflows

b0fnetyahoo.com
Date: Mon Feb 13 2006 - 14:34:01 CST

This is an update on.
http://idefense.com/intelligence/vulnerabilities/display.php?id=378

and also a new overflow with .m3u

This overflow is still present in the latest version of winamp 5.13 with a little bit of modifcation.

FIRST VULN
==========

like so..
Example m3U file format:

#EXTM3U
#EXTINF:,VULN
http://AAAA[...]AA.wma

Example pls file format:

[playlist]
numberofentries=5
File1=http://AAAA[...]AA.wma
Title1=
Length5=-1
Version=2

add correct amount of A's untill overflow occurs.

SECOND VULN
============

This one is simple create a file with a long file name like so AAAA[...]AA.m3u save the file and open it and suprise winamp crashes.

=================================================

The vendor has not been contacted on these issues due to past unsuccessfull attempts on other issues and both remain vuln in the latest version of winamp.

Regards
Alan McCaig (b0f)
b0fnetyahoo.com