GLSA 200509-18 Qt: Buffer overflow in the included zlib library
Posted on: 09/26/2005 03:12 PM

A new security update has been released for Gentoo Linux - Qt: Buffer overflow in the included zlib library. Here the announcement:

Gentoo Linux Security Advisory GLSA 200509-18
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http://security.gentoo.org/
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Severity: Normal
Title: Qt: Buffer overflow in the included zlib library
Date: September 26, 2005
Bugs: #100683
ID: 200509-18

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Synopsis
========

Qt is vulnerable to a buffer overflow which could potentially lead to
the execution of arbitrary code.

Background
==========

Qt is a cross-platform GUI toolkit used by KDE.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 x11-libs/qt lt; 3.3.4-r8 gt;= 3.3.4-r8

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

Qt links to a bundled vulnerable version of zlib when emerged with the
zlib USE-flag disabled. This may lead to a buffer overflow.

Impact
======

By creating a specially crafted compressed data stream, attackers can
overwrite data structures for applications that use Qt, resulting in a
Denial of Service or potentially arbitrary code execution.

Workaround
==========

Emerge Qt with the zlib USE-flag enabled.

Resolution
==========

All Qt users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=x11-libs/qt-3.3.4-r8"

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

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

http://security.gentoo.org/glsa/glsa-200509-18.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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