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UNIRAS Brief - 719/06 - Gentoo Linux Security Advisory: GLSA 200611-02 - Qt: Integer overflow



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______________________________________________________________________________

 UNIRAS (UK Government CERT) Briefing - 719/06 dated 07.11.06 time 13:50
 UNIRAS is part of NISCC (the UK National Infrastructure Security
 Co-ordination Centre)
______________________________________________________________________________

 UNIRAS material is available from the NISCC website at www.niscc.gov.uk
______________________________________________________________________________

Title
=====

Gentoo Linux Security Advisory: GLSA 200611-02 -  Qt: Integer overflow

Detail
======

An integer overflow flaw has been found in the pixmap handling of Qt.


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Gentoo Linux Security Advisory                           GLSA 200611-02
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                                             http://security.gentoo.org/
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   Severity: Normal
      Title: Qt: Integer overflow
       Date: November 06, 2006
       Bugs: #151838
         ID: 200611-02

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Synopsis
========

An integer overflow flaw in the Qt pixmap handling could possibly lead
to a Denial of Service or the remote execution of arbitrary code.

Background
==========

Qt is a cross-platform GUI toolkit, which is used e.g. by KDE.

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

     -------------------------------------------------------------------
      Package      /  Vulnerable  /                          Unaffected
     -------------------------------------------------------------------
   1  x11-libs/qt     < 4.1.4-r2                            >= 4.1.4-r2
                                                           *>= 3.3.6-r4

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

An integer overflow flaw has been found in the pixmap handling of Qt.

Impact
======

By enticing a user to open a specially crafted pixmap image in an
application using Qt, e.g. Konqueror, a remote attacker could be able
to cause an application crash or the execution of arbitrary code with
the rights of the user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Qt 3.x users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=x11-libs/qt-3.3.6-r4"

All Qt 4.x users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=x11-libs/qt-4.1.4-r2"

References
==========

   [ 1 ] CVE-2006-4811
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4811

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

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

   http://security.gentoo.org/glsa/glsa-200611-02.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@xxxxxxxxxx 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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UNIRAS wishes to acknowledge the contributions of Gentoo for the
information contained in this briefing.
______________________________________________________________________________

This notice contains information released by the original author.
Some of the information may have changed since it was released. If the
vulnerability affects you, it may be prudent to retrieve the advisory
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<End of UNIRAS Briefing>

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