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Doomsday: format string vulnerability



Doomsday: Format string vulnerability
Doomsday: Format string vulnerability



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Gentoo Linux Security Advisory                           GLSA 200604-05
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http://security.gentoo.org/ 
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  Severity: High
     Title: Doomsday: Format string vulnerability
      Date: April 06, 2006
      Bugs: #128690
        ID: 200604-05

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Synopsis
=======
Format string vulnerabilities in Doomsday may lead to the execution of
arbitrary code.

Background
=========
Doomsday is a modern gaming engine for popular ID games like Doom,
Heretic and Hexen.

Affected packages
================
    -------------------------------------------------------------------
     Package             /   Vulnerable   /                 Unaffected
    -------------------------------------------------------------------
  1  games-fps/doomsday      <= 1.8.6-r1                   Vulnerable!
    -------------------------------------------------------------------
     NOTE: Certain packages are still vulnerable. Users should migrate
           to another package if one is available or wait for the
           existing packages to be marked stable by their
           architecture maintainers.

Description
==========
Luigi Auriemma discovered that Doomsday incorrectly implements
formatted printing.

Impact
=====
A remote attacker could exploit these vulnerabilities to execute
arbitrary code with the rights of the user running the Doomsday server
or client by sending specially crafted strings.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
Doomsday has been masked in Portage pending the resolution of these
issues. All Doomsday users are advised to uninstall the package until
further notice.

    # emerge --ask --verbose --unmerge games-fps/doomsday

References
=========
  [ 1 ] CVE-2006-1618
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1618 
  [ 2 ] Original advisory by Luigi Auriemma
http://aluigi.altervista.org/adv/doomsdayfs-adv.txt 

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

http://security.gentoo.org/glsa/glsa-200604-05.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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