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Bugtraq: Server crash in Breed patch #1

Server crash in Breed patch #1

From: Luigi Auriemma <aluigi_at_autistici.org>
Date: Thu, 13 Jan 2005 21:16:25 +0000

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

                             Luigi Auriemma

Application: Breed
              http://www.brat-designs.com/breed.html
Versions: <= patch #1
Platforms: Windows
Bug: access to NULL pointer
Exploitation: remote, versus server
Date: 13 Jan 2005
Author: Luigi Auriemma
              e-mail: aluigi_at_autistici.org
              web: http://aluigi.altervista.org

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

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

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

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

Breed is a game developed by Brat Designs (http://www.brat-designs.com)
using their Mercury engine.
It has been released in February 2004.

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

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

The game server can be easily crashed through the sending of an empty
UDP packet.
In fact if the packet size is equal to zero, the game passes a NULL
pointer to the function used to parse the packet's content.

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

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

http://aluigi.altervista.org/poc/breedzero.zip

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

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

No fix.
No reply from the vendor.

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

---
Luigi Auriemma
http://aluigi.altervista.org
Received on Jan 13 2005

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