__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN ncpfs Security Update [Red Hat Security Advisory RHSA-2005:371-06] May 17, 2005 17:00 GMT Number P-204 ______________________________________________________________________________ PROBLEM: Ncpfs is a file system that understands the Novell NetWare(TM) NCP protocol. A bug was found in the way ncpfs handled file permissions. PLATFORM: Red Hat Enterprise Linux AS (v. 2.1) Red Hat Enterprise Linux ES (v. 2.1) Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor DAMAGE: ncpfs did not sufficiently check if the file owner matched the user attempting to access the file, potentially violating the file permissions. SOLUTION: Apply available security updates. ______________________________________________________________________________ VULNERABILITY The risk is Low. Someone could bypass access controls violating ASSESSMENT: the file permissions. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/p-204.shtml ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2005-371.html CVE/CAN: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CAN-2005-0013 ______________________________________________________________________________ [***** Start Red Hat Security Advisory RHSA-2005:371-06 *****] Moderate: ncpfs security update Advisory: RHSA-2005:371-06 Type: Security Advisory Issued on: 2005-05-17 Last updated on: 2005-05-17 Affected Products: Red Hat Enterprise Linux AS (v. 2.1) Red Hat Enterprise Linux ES (v. 2.1) Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor CVEs (cve.mitre.org): CAN-2005-0013 Details An updated ncpfs package is now available. This update has been rated as having moderate security impact by the Red Hat Security Response Team. Ncpfs is a file system that understands the Novell NetWare(TM) NCP protocol. A bug was found in the way ncpfs handled file permissions. ncpfs did not sufficiently check if the file owner matched the user attempting to access the file, potentially violating the file permissions. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-0013 to this issue. All users of ncpfs are advised to upgrade to this updated package, which contains backported fixes for this issue. Solution Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. Updated packages Red Hat Enterprise Linux AS (v. 2.1) -------------------------------------------------------------------------------- SRPMS: ncpfs-2.2.0.18-6.EL2.src.rpm 97fc82b06243d3344766a6c83d7ce2cc IA-32: ipxutils-2.2.0.18-6.EL2.i386.rpm 8000785605e0093e0a51689a63fa56c9 ncpfs-2.2.0.18-6.EL2.i386.rpm d38e5b535f4fc5a14d456a13b22c0532 IA-64: ipxutils-2.2.0.18-6.EL2.ia64.rpm 1a46f4110cccbcebfc679f1371774c88 ncpfs-2.2.0.18-6.EL2.ia64.rpm 4e5a20f0012d01b177762ed8c557105f Red Hat Enterprise Linux ES (v. 2.1) -------------------------------------------------------------------------------- SRPMS: ncpfs-2.2.0.18-6.EL2.src.rpm 97fc82b06243d3344766a6c83d7ce2cc IA-32: ipxutils-2.2.0.18-6.EL2.i386.rpm 8000785605e0093e0a51689a63fa56c9 ncpfs-2.2.0.18-6.EL2.i386.rpm d38e5b535f4fc5a14d456a13b22c0532 Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor -------------------------------------------------------------------------------- SRPMS: ncpfs-2.2.0.18-6.EL2.src.rpm 97fc82b06243d3344766a6c83d7ce2cc IA-64: ipxutils-2.2.0.18-6.EL2.ia64.rpm 1a46f4110cccbcebfc679f1371774c88 ncpfs-2.2.0.18-6.EL2.ia64.rpm 4e5a20f0012d01b177762ed8c557105f (The unlinked packages above are only available from the Red Hat Network) Bugs fixed (see bugzilla for more information) 149869 - CAN-2005-0546 multiple buffer overflows in cyrus-imapd References http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0013 Keywords ncpfs -------------------------------------------------------------------------------- These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from: https://www.redhat.com/security/team/key/#package The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/ Copyright © 2002-05 Red Hat, Inc. All rights reserved. Legal statement : Privacy statement : redhat.com Red Hat Network release 3.7.1 [***** End Red Hat Security Advisory RHSA-2005:371-06 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Red Hat for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. 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