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