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Gentoo Linux Security Advisory GLSA 200508-08
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http://security.gentoo.org/
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Severity: Normal
Title: Xpdf, Kpdf, GPdf: Denial of Service vulnerability
Date: August 16, 2005
Bugs: #99769, #100263, #100265
ID: 200508-08
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Synopsis
========
Xpdf, Kpdf and GPdf may crash as a result of a Denial of Service
vulnerability.
Background
==========
Xpdf, Kpdf and GPdf are PDF file viewers that run under the X Window
System. Kpdf and GPdf both contain Xpdf code. Kpdf is also part of
kdegraphics.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-text/xpdf < 3.00-r10 >= 3.00-r10
2 kde-base/kdegraphics < 3.3.2-r3 >= 3.3.2-r3
3 kde-base/kpdf < 3.4.1-r1 >= 3.4.1-r1
4 app-text/gpdf < 2.10.0-r1 >= 2.10.0-r1
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4 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
Xpdf, Kpdf and GPdf do not handle a broken table of embedded TrueType
fonts correctly. After detecting such a table, Xpdf, Kpdf and GPdf
attempt to reconstruct the information in it by decoding the PDF file,
which causes the generation of a huge temporary file.
Impact
======
A remote attacker may cause a Denial of Service by creating a specially
crafted PDF file, sending it to a CUPS printing system (which uses
Xpdf), or by enticing a user to open it in Xpdf, Kpdf, or GPdf.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Xpdf users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/xpdf-3.00-r10"
All GPdf users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/gpdf-2.10.0-r1"
All Kpdf users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.3.2-r3"
All KDE Split Ebuild Kpdf users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.4.1-r1"
References
==========
[ 1 ] CAN-2005-2097
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2097
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200508-08.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@xxxxxxxxxx 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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