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Gentoo Linux Security Advisory GLSA 200410-20
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http://security.gentoo.org/
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Severity: Normal
Title: Xpdf, CUPS: Multiple integer overflows
Date: October 21, 2004
ID: 200410-20
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Synopsis
========
Multiple integer overflows were discovered in Xpdf, potentially
resulting in execution of arbitrary code upon viewing a malicious PDF
file. CUPS includes Xpdf code and therefore is vulnerable to the same
issues.
Background
==========
Xpdf is an open source viewer for Portable Document Format (PDF) files.
The Common UNIX Printing System (CUPS) is a cross-platform print
spooler that includes some Xpdf code.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-text/xpdf <= 3.00-r2 >= 3.00-r3
2 net-print/cups <= 1.1.20-r3 >= 1.1.20-r4
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
Chris Evans discovered multiple integer overflow issues in Xpdf.
Impact
======
An attacker could entice an user to open a specially-crafted PDF file,
potentially resulting in execution of arbitrary code with the rights of
the user running Xpdf. By enticing an user to directly print the PDF
file to a CUPS printer, an attacker could also crash the CUPS spooler
or execute arbitrary code with the rights of the CUPS spooler, which is
usually the "lp" user.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Xpdf users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=app-text/xpdf-3.00-r3"
# emerge ">=app-text/xpdf-3.00-r3"
All CUPS users should also upgrade to the latest version:
# emerge sync
# emerge -pv ">=net-print/cups-1.1.20-r4"
# emerge ">=net-print/cups-1.1.20-r4"
References
==========
[ 1 ] CAN-2004-0888
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0888
[ 2 ] CAN-2004-0889
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0889
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200410-20.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 2004 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/1.0
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