[Full-disclosure] [ GLSA 200609-03 ] OpenTTD: Remote Denial of Service

[Sune Kloppenborg Jeppesen]

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Gentoo Linux Security Advisory                           GLSA 200609-03
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: OpenTTD: Remote Denial of Service
      Date: September 06, 2006
      Bugs: #131010
        ID: 200609-03

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Synopsis
========

The OpenTTD server is vulnerable to a remote Denial of Service.

Background
==========

OpenTTD is a clone of Transport Tycoon Deluxe.

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

    -------------------------------------------------------------------
     Package                   /  Vulnerable  /             Unaffected
    -------------------------------------------------------------------
  1  games-simulation/openttd       < 0.4.8                   >= 0.4.8

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

OpenTTD is vulnerable to a Denial of Service attack due to a flaw in
the manner the game server handles errors in command packets.

Impact
======

An authenticated attacker can cause a Denial of Service by sending an
invalid error number to a vulnerable OpenTTD server.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All OpenTTD users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=games-simulation/openttd-0.4.8"

References
==========

  [ 1 ] CVE-2006-1998
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1998
  [ 2 ] CVE-2006-1999
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1999

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

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

  http://security.gentoo.org/glsa/glsa-200609-03.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 at 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/2.5
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