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Home arrow SecurityAlert Database

Arrow  Topic :

Server freezed in Skulltag 0.97d2-RC2


Arrow  SecurityAlert : 3953
Arrow  CVE : CVE-2008-2748
Arrow  CWE : CWE-Other
Arrow  SecurityRisk : Medium  Security Risk Medium  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Victim interaction required : No
Arrow  Exploit Available : Yes
Arrow  Credit : Luigi Auriemma
Arrow  Published : 22.06.2008

Arrow  Affected Software : Skulltag Team, Skulltag, 0.95c
Skulltag Team, Skulltag, 0.95d
Skulltag Team, Skulltag, 0.95e
Skulltag Team, Skulltag, 0.95f
Skulltag Team, Skulltag, 0.95g
Skulltag Team, Skulltag, 0.95h
Skulltag Team, Skulltag, 0.95i
Skulltag Team, Skulltag, 0.95j
Skulltag Team, Skulltag, 0.95k
Skulltag Team, Skulltag, 0.96b
Skulltag Team, Skulltag, 0.96c
Skulltag Team, Skulltag, 0.96d
Skulltag Team, Skulltag, 0.96e
Skulltag Team, Skulltag, 0.96f
Skulltag Team, Skulltag, 0.97d
Skulltag Team, Skulltag, 0.97d2, Release Candidate 2
Skulltag Team, Skulltag, 0.97d2, Release Candidate 3
Skulltag Team, Skulltag, 0.97d, Release Candidate 10
Skulltag Team, Skulltag, 0.97d, Release Candidate 9
Skulltag Team, Skulltag, 0.97d, Beta_4.1
Skulltag Team, Skulltag, 0.97d, Beta_4.2
Skulltag Team, Skulltag, 0.97d, Beta_4.3
Skulltag Team, Skulltag, 0.97d, Beta_4
Skulltag Team, Skulltag, 0.97d, Beta_3
Skulltag Team, Skulltag, 0.97d, Beta_2
Skulltag Team, Skulltag, 0.97d, Beta_1
Skulltag Team, Skulltag, 0.97b
Skulltag Team, Skulltag, 0.97c
Skulltag Team, Skulltag, 0.97c2
Skulltag Team, Skulltag, 0.97c3



Arrow  Advisory Content :  

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

Luigi Auriemma

Application: Skulltag
http://www.skulltag.com
Versions: <= 0.97d2-RC2
Platforms: Windows, Linux and FreeBSD
Bug: loop during the parsing of the packets
Exploitation: remote, versus server
Date: 16 Jun 2008
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
===============

Skulltag is a port of the original Doom mainly focused on multiplayer
gaming.

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

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

Skulltag is affected by a problem in the parsing of some packets with
the result of freezing the entine server for some seconds through the
sending of a single big malformed packet which is parsed multiple
times.
This Denial of Service can be made endless using multiple malformed
packets at regular intervals.

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

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

http://aluigi.org/poc/skulltagloop.zip

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

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

Version 0.97d2-RC3

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

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



Arrow  References :

http://xforce.iss.net/xforce/xfdb/43125
http://www.securityfocus.com/bid/29760
http://www.securityfocus.com/archive/1/archive/1/493386/100/0/threaded
http://skulltag.com/testing/public/Skulltag%20Version%20History.txt
http://secunia.com/advisories/30668
http://aluigi.org/poc/skulltagloop.zip




Arrow  Feedback :

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