Date: Sun, 18 Nov 2007 21:55:35 +0100
From: Pierre-Yves Rofes <py@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200711-22 ] Poppler, KDE: User-assisted execution of arbitrary
code
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Gentoo Linux Security Advisory GLSA 200711-22
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http://security.gentoo.org/
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Severity: Normal
Title: Poppler, KDE: User-assisted execution of arbitrary code
Date: November 18, 2007
Bugs: #196735, #198409
ID: 200711-22
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Synopsis
========
Poppler and various KDE components are vulnerable to multiple memory
management issues possibly resulting in the execution of arbitrary
code.
Background
==========
Poppler is a cross-platform PDF rendering library originally based on
Xpdf. 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-text/poppler < 0.6.1-r1 >= 0.6.1-r1
2 kde-base/kpdf < 3.5.8-r1 *>= 3.5.7-r3
>= 3.5.8-r1
3 kde-base/kdegraphics < 3.5.8-r1 *>= 3.5.7-r3
>= 3.5.8-r1
4 app-office/kword < 1.6.3-r2 >= 1.6.3-r2
5 app-office/koffice < 1.6.3-r2 >= 1.6.3-r2
-------------------------------------------------------------------
5 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
Alin Rad Pop (Secunia Research) discovered several vulnerabilities in
the "Stream.cc" file of Xpdf: An integer overflow in the
DCTStream::reset() method and a boundary error in the
CCITTFaxStream::lookChar() method, both leading to heap-based buffer
overflows (CVE-2007-5392, CVE-2007-5393). He also discovered a boundary
checking error in the DCTStream::readProgressiveDataUnit() method
causing memory corruption (CVE-2007-4352). Note: Gentoo's version of
Xpdf is patched to use the Poppler library, so the update to Poppler
will also fix Xpdf.
Impact
======
By enticing a user to view or process a specially crafted PDF file with
KWord or KPDF or a Poppler-based program such as Gentoo's viewers Xpdf,
ePDFView, and Evince or the CUPS printing system, a remote attacker
could cause an overflow, potentially 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 Poppler users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/poppler-0.6.1-r1"
All KPDF users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.5.7-r3"
All KDE Graphics Libraries users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.5.7-r3"
All KWord users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/kword-1.6.3-r2"
All KOffice users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/koffice-1.6.3-r2"
References
==========
[ 1 ] CVE-2007-4352
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4352
[ 2 ] CVE-2007-5392
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5392
[ 3 ] CVE-2007-5393
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5393
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200711-22.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 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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