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List:       bugtraq
Subject:    Server crash in Breed patch #1
From:       Luigi Auriemma <aluigi () autistici ! org>
Date:       2005-01-13 21:16:25
Message-ID: 20050113211625.6da7fb1d.aluigi () autistici ! org
[Download RAW message or body]


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

                             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@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

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