Date: Mon, 19 Jul 2004 22:53:30 +0200
From: Thierry Carrez <[email protected]>
To: [email protected]Subject: [ GLSA 200407-14 ] Unreal Tournament 2003/2004: Buffer overflow in 'secure' queries
Cc: [email protected], [email protected],
[email protected]
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Gentoo Linux Security Advisory GLSA 200407-14
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http://security.gentoo.org/
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Severity: High
Title: Unreal Tournament 2003/2004: Buffer overflow in 'secure'
queries
Date: July 19, 2004
Bugs: #54726
ID: 200407-14
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Synopsis
========
Game servers based on the Unreal engine are vulnerable to remote code
execution through malformed 'secure' queries.
Background
==========
Unreal Tournament 2003 and 2004 are popular first-person-shooter games.
They are both based on the Unreal engine, and can be used in a game
server / client setup.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 games-fps/ut2003 <= 2225-r2 >= 2225-r3
2 games-server/ut2003-ded <= 2225-r1 >= 2225-r2
3 games-fps/ut2004 < 3236 >= 3236
4 games-fps/ut2004-demo <= 3120-r3 >= 3120-r4
-------------------------------------------------------------------
4 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
The Unreal-based game servers support a specific type of query called
'secure'. Part of the Gamespy protocol, this query is used to ask if
the game server is able to calculate an exact response using a provided
string. Luigi Auriemma found that sending a long 'secure' query
triggers a buffer overflow in the game server.
Impact
======
By sending a malicious UDP-based 'secure' query, an attacker could
execute arbitrary code on the game server.
Workaround
==========
Users can avoid this vulnerability by not using Unreal Tournament to
host games as a server. All users running a server should upgrade to
the latest versions.
Resolution
==========
All Unreal Tournament users should upgrade to the latest available
versions:
# emerge sync
# emerge -pv ">=games-fps/ut2003-2225-r3"
# emerge ">=games-fps/ut2003-2225-r3"
# emerge -pv ">=games-server/ut2003-ded-2225-r2"
# emerge ">=games-server/ut2003-ded-2225-r2"
# emerge -pv ">=games-fps/ut2004-3236"
# emerge ">=games-fps/ut2004-3236"
# emerge -pv ">=games-fps/ut2004-demo-3120-r4"
# emerge ">=games-fps/ut2004-demo-3120-r4"
References
==========
[ 1 ] Luigi Auriemma advisory
http://aluigi.altervista.org/adv/unsecure-adv.txt
[ 2 ] CAN-2004-0608
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0608
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200407-14.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/1.0
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