Unicode buffer-overflow in Zoom Player 6.00b2

2007-12-2600:00:00

vulners.com

JSON

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

                         Luigi Auriemma

Application: Zoom Player
http://www.inmatrix.com
Versions: <= v6.00 beta 2 and naturally all the stable v5 versions
Platforms: Windows
Bug: unicode buffer-overflow
Exploitation: local
Date: 24 Dec 2007
Author: Luigi Auriemma
e-mail: [email protected]
web: aluigi.org

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

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

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

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

Zoom Player is a media player for Windows which supports many formats
through external filters.

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

======
2) Bug

Zoom Player is affected by an unicode buffer-overflow in the function
which builds the error messages.
The problem can be exploited for example through a malformed ZPL file
containing a http link to a file with PLS extension which will force
the program to use wsprintf for building the "Unable to play [%s]"
error message.

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