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Home arrow SecurityAlert Database

Arrow  Topic :

Buffer-overflow in CoolPlayer 217


Arrow  SecurityAlert : 3503
Arrow  CVE : CVE-2007-6609
Arrow  SecurityRisk : Medium  Security Risk Medium  (About)
Arrow  Remote Exploit : No
Arrow  Local Exploit : Yes
Arrow  Exploit Available : No
Arrow  Credit : Luigi Auriemma
Arrow  Published : 01.01.2008

Arrow  Affected Software : CoolPlayer <= 217



Arrow  Advisory Content :  

#######################################################################

Luigi Auriemma

Application: CoolPlayer
http://coolplayer.sourceforge.net
Versions: <= 217
Platforms: Windows
Bug: buffer-overflow in CPLI_ReadTag_OGG
Exploitation: local
Date: 28 Dec 2007
Author: Luigi Auriemma
e-mail: aluigi (at) autistici (dot) org [email concealed]
web: aluigi.org

#######################################################################

1) Introduction
2) Bug
3) The Code
4) Fix

#######################################################################

===============
1) Introduction
===============

CoolPlayer is a tiny open source media player for Windows.

#######################################################################

======
2) Bug
======

The tags in the OGG Vorbis files are handled by the CPLI_ReadTag_OGG
function which uses sscanf for storing the tag's name and its value in
two stack buffers but the lack of size limiters in the format argument
results in a buffer-overflow.

From CPI_PlaylistItem.c:

void CPLI_ReadTag_OGG(CPs_PlaylistItem* pItem)
...
char cTag[128];
char cValue[2048];

if(sscanf(pComment->user_comments[iCommentIDX], " %[^= ] = %[^=]", cTag,
cValue) == 2)
...

#######################################################################

===========
3) The Code
===========

vorbiscomment -t cTag=AAA_2500_A's_AAA -a input.ogg output.ogg

#######################################################################

======
4) Fix
======

The problem has been reported to the developers which have said that
will work on this and on any other old public bug.

#######################################################################

---
Luigi Auriemma
http://aluigi.org






Arrow  Feedback :

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