bugtraq - [ GLSA 200710-08 ] KOffice, KWord, KPDF, KDE Graphics Libraries: Stack-based buffer overflow

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Message-ID: <470BFC17.6040005@gentoo.org>
Date: Wed, 10 Oct 2007 00:09:27 +0200
From: Pierre-Yves Rofes <py@...too.org>
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200710-08 ] KOffice, KWord, KPDF, KDE Graphics Libraries:
 Stack-based buffer overflow

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Gentoo Linux Security Advisory                           GLSA 200710-08
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: KOffice, KWord, KPDF, KDE Graphics Libraries: Stack-based
            buffer overflow
      Date: October 09, 2007
      Bugs: #187139
        ID: 200710-08

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Synopsis
========

KPDF includes code from xpdf that is vulnerable to a stack-based buffer
overflow.

Background
==========

KOffice is an integrated office suite for KDE. KWord is the KOffice
word processor. KPDF is a KDE-based PDF viewer included in the
kdegraphics package.

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

    -------------------------------------------------------------------
     Package               /  Vulnerable  /                 Unaffected
    -------------------------------------------------------------------
  1  app-office/koffice       < 1.6.3-r1                   >= 1.6.3-r1
  2  app-office/kword         < 1.6.3-r1                   >= 1.6.3-r1
  3  kde-base/kdegraphics     < 3.5.7-r1                   >= 3.5.7-r1
  4  kde-base/kpdf            < 3.5.7-r1                   >= 3.5.7-r1
    -------------------------------------------------------------------
     4 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

KPDF includes code from xpdf that is vulnerable to an integer overflow
in the StreamPredictor::StreamPredictor() function.

Impact
======

A remote attacker could entice a user to open a specially crafted PDF
file in KWord or KPDF that would exploit the integer overflow to cause
a stack-based buffer overflow in the StreamPredictor::getNextLine()
function, possibly resulting in the execution of arbitrary code with
the privileges of the user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All KOffice users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-office/koffice-1.6.3-r1"

All KWord users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-office/kword-1.6.3-r1"

All KDE Graphics Libraries users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.5.7-r1"

All KPDF users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.5.7-r1"

References
==========

  [ 1 ] CVE-2007-3387
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3387

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

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

  http://security.gentoo.org/glsa/glsa-200710-08.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@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 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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