GLSA 200412-25: CUPS: Multiple vulnerabilities
Posted on: 12/28/2004 06:16 PM

A CUPS security update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200412-25
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http://security.gentoo.org/
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Severity: High
Title: CUPS: Multiple vulnerabilities
Date: December 28, 2004
Bugs: #74479, #75197
ID: 200412-25

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Synopsis
=======

Multiple vulnerabilities have been found in CUPS, ranging from local Denial of Service attacks to the remote execution of arbitrary code.

Background
=========

The Common UNIX Printing System (CUPS) is a cross-platform print spooler, hpgltops is a CUPS filter handling printing of HPGL files and lppasswd is a program used locally to manage spooler passwords.

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

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Package / Vulnerable / Unaffected
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1 net-print/cups < 1.1.23_rc1 >= 1.1.23_rc1

Description
==========

CUPS makes use of vulnerable Xpdf code to handle PDF files (CAN-2004-1125). Furthermore, Ariel Berkman discovered a buffer overflow in the ParseCommand function in hpgl-input.c in the hpgltops program (CAN-2004-1267). Finally, Bartlomiej Sieka discovered several problems in the lppasswd program: it ignores some write errors (CAN-2004-1268), it can leave the passwd.new file in place (CAN-2004-1269) and it does not verify that passwd.new file is different from STDERR (CAN-2004-1270).

Impact
=====

The Xpdf and hpgltops vulnerabilities may be exploited by a remote attacker to execute arbitrary code by sending specific print jobs to a CUPS spooler. The lppasswd vulnerabilities may be exploited by a local attacker to write data to the CUPS password file or deny further password modifications.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All CUPS users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-print/cups-1.1.23_rc1"

References
=========

[ 1 ] CAN-2004-1125
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1125
[ 2 ] CAN-2004-1267
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1267
[ 3 ] CAN-2004-1268
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1268
[ 4 ] CAN-2004-1269
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1269
[ 5 ] CAN-2004-1270
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1270
[ 6 ] Ariel Berkman Advisory
http://tigger.uic.edu/~jlongs2/holes/cups.txt
[ 7 ] Bartlomiej Sieka Advisory
http://tigger.uic.edu/~jlongs2/holes/cups2.txt

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

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

http://security.gentoo.org/glsa/glsa-200412-25.xml

Concerns?
========

Security is a primary focus of Gentoo Linux and ensur
ing 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/2.0


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