Gentoo: KDE Local Denial of Service
Posted by Benjamin D. Thomas   
Gentoo KDE is vulnerable to a local Denial of Service attack.
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Gentoo Linux Security Advisory                           GLSA 200503-22
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: KDE: Local Denial of Service
      Date: March 19, 2005
      Bugs: #83814
        ID: 200503-22

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Synopsis
========

KDE is vulnerable to a local Denial of Service attack.

Background
==========

KDE is a feature-rich graphical desktop environment for Linux and
Unix-like Operating Systems. DCOP is KDE's simple IPC/RPC mechanism.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  kde-base/kdelibs     < 3.3.2-r7                       >= 3.3.2-r7
                                                          *>= 3.2.3-r8

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

Sebastian Krahmer discovered that it is possible to stall the
dcopserver of other users.

Impact
======

An attacker could exploit this to cause a local Denial of Service by
stalling the dcopserver in the authentication process. As a result all
desktop functionality relying on DCOP will cease to function.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All kdelibs users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose kde-base/kdelibs

References
==========

  [ 1 ] CAN-2005-0396
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0396

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

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

  http://security.gentoo.org/glsa/glsa-200503-22.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