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[ GLSA 200604-11 ] Crossfire server: Denial of Service and potential arbitrary code execution
From: Thierry Carrez <koon () gentoo org>
Date: Sat, 22 Apr 2006 22:12:30 +0200

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Gentoo Linux Security Advisory                           GLSA 200604-11
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Crossfire server: Denial of Service and potential arbitrary
            code execution
      Date: April 22, 2006
      Bugs: #126169
        ID: 200604-11

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Synopsis
========

The Crossfire game server is vulnerable to a Denial of Service and
potentially to the execution of arbitrary code.

Background
==========

Crossfire is a cooperative multiplayer graphical adventure and
role-playing game. The Crossfire game server allows various compatible
clients to connect to participate in a cooperative game.

Affected packages
=================

    -------------------------------------------------------------------
     Package                        /  Vulnerable  /        Unaffected
    -------------------------------------------------------------------
  1  games-server/crossfire-server       < 1.9.0              >= 1.9.0

Description
===========

Luigi Auriemma discovered a vulnerability in the Crossfire game server,
in the handling of the "oldsocketmode" option when processing overly
large requests.

Impact
======

An attacker can set up a malicious Crossfire client that would send a
large request in "oldsocketmode", resulting in a Denial of Service on
the Crossfire server and potentially in the execution of arbitrary code
on the server with the rights of the game server.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Crossfire server users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
">=games-server/crossfire-server-1.9.0"

References
==========

  [ 1 ] CVE-2006-1010
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1010

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200604-11.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
security () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 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/2.0

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