bugtraq - Freeze in Pigeon Server 3.02.0143

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Message-ID: <20040916182842.4015adf5.aluigi@autistici.org>
Date: Thu, 16 Sep 2004 18:28:42 +0000
From: Luigi Auriemma <aluigi@...istici.org>
To: bugtraq@...urityfocus.com, bugs@...uritytracker.com, news@...uriteam.com,
   full-disclosure@...ts.netsys.com, vuln@...unia.com
Subject: Freeze in Pigeon Server 3.02.0143



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

                             Luigi Auriemma

Application:  Pigeon Server
              http://www.tech-noel.com
Versions:     <= 3.02.0143
Platforms:    Windows
Bug:          freeze
Risk:         medium
Exploitation: remote, versus server
Date:         16 September 2004
Author:       Luigi Auriemma
              e-mail: aluigi@...ervista.org
              web:    http://aluigi.altervista.org


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


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


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

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


Pigeon is a communication system for LANs and uses a clients-server
architecture.


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

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


A login field longer than 8180 chars sent to the port 3103 causes the
immediate freeze of the Pigeon server that enters in an infinite loop,
so CPU raises at 100% and is impossible to login and to send/receive
messages.


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

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


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


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

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


Version 3.03.146:

  ftp://ftp.tech-noel.com/PigeonServerUpd.exe


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


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

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