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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@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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