Gentoo: 201403-04 QtCore: Denial of Service
Posted by Benjamin D. Thomas   
Gentoo A vulnerability in QXmlSimpleReader class can be used to cause a Denial of Service condition.
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Gentoo Linux Security Advisory                           GLSA 201403-04
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: QtCore: Denial of Service
     Date: March 13, 2014
     Bugs: #494728
       ID: 201403-04

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Synopsis
========

A vulnerability in QXmlSimpleReader class can be used to cause a Denial
of Service condition.

Background
==========

The Qt toolkit is a comprehensive C++ application development
framework.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-qt/qtcore               < 4.8.5-r1               >= 4.8.5-r1 

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

A vulnerability in QXmlSimpleReader's XML entity parsing has been
discovered.

Impact
======

A remote attacker could entice a user to open a specially crafted XML
file using an application linked against QtCore, possibly resulting in
Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All QtCore users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-qt/qtcore-4.8.5-r1"

Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying these packages.

References
==========

[ 1 ] CVE-2013-4549
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4549

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

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

 http://security.gentoo.org/glsa/glsa-201403-04.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
https://bugs.gentoo.org.

License

Copyright 2014 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