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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
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
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 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/2.0
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