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Gentoo Linux Security Advisory                           GLSA 200509-03
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                                            http://security.gentoo.org/
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  Severity: High
     Title: OpenTTD: Format string vulnerabilities
      Date: September 05, 2005
      Bugs: #102631
        ID: 200509-03

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Synopsis
========

OpenTTD is vulnerable to format string vulnerabilities which may result
in remote execution of arbitrary code.

Background
==========

OpenTTD is an open source clone of the simulation game "Transport
Tycoon Deluxe" by Microprose.

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

    -------------------------------------------------------------------
     Package                   /   Vulnerable   /           Unaffected
    -------------------------------------------------------------------
  1  games-simulation/openttd     < 0.4.0.1-r1           >= 0.4.0.1-r1

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

Alexey Dobriyan discovered several format string vulnerabilities in
OpenTTD.

Impact
======

A remote attacker could exploit these vulnerabilities to crash the
OpenTTD server or client and possibly execute arbitrary code with the
rights of the user running OpenTTD.

Workaround
==========

There are no known workarounds at this time.

Resolution
==========

All OpenTTD users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
">=games-simulation/openttd-0.4.0.1-r1"

References
==========

  [ 1 ] CAN-2005-2763
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2763

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

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

  http://security.gentoo.org/glsa/glsa-200509-03.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 2005 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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