__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN tar Security Update [RHSA-2006:0232-3] March 7, 2006 19:00 GMT Number Q-141 ______________________________________________________________________________ PROBLEM: A buffer overflow bug in the way GNU tar extracts malformed archives. PLATFORM: Red Hat Desktop, Enterprise Linux AS, ES, WS (v. 4) DAMAGE: It is possible to execute arbitrary code as the user running tar. SOLUTION: Apply current patches. ______________________________________________________________________________ VULNERABILITY The risk is LOW. Execute arbitrary code as the user running ASSESSMENT: tar. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/q-141.shtml ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2006-0232.html CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2006-0300 ______________________________________________________________________________ [***** Start RHSA-2006:0232-3 *****] Moderate: tar security update Advisory: RHSA-2006:0232-3 Type: Security Advisory Issued on: 2006-03-01 Last updated on: 2006-03-01 Affected Products: Red Hat Desktop (v. 4) Red Hat Enterprise Linux AS (v. 4) Red Hat Enterprise Linux ES (v. 4) Red Hat Enterprise Linux WS (v. 4) CVEs (cve.mitre.org): CVE-2006-0300 Details An updated tar package that fixes a buffer overflow bug is now available for Red Hat Enterprise Linux 4. This update has been rated as having Moderate security impact by the Red Hat Security Response Team. The GNU tar program saves many files together in one archive and can restore individual files (or all of the files) from that archive. Jim Meyering discovered a buffer overflow bug in the way GNU tar extracts malformed archives. By tricking a user into extracting a malicious tar archive, it is possible to execute arbitrary code as the user running tar. The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2006-0300 to this issue. Users of tar should upgrade to this updated package, which contains a backported patch to correct this issue. Solution Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via Red Hat Network. 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 Desktop (v. 4) SRPMS: tar-1.14-9.RHEL4.src.rpm 20edf00d3f726e8ef40182a1cc74c309 IA-32: tar-1.14-9.RHEL4.i386.rpm 8e6c7bf72e4f4d48e066406614396a08 x86_64: tar-1.14-9.RHEL4.x86_64.rpm 2002e57270db78163e556c0321b8e190 Red Hat Enterprise Linux AS (v. 4) SRPMS: tar-1.14-9.RHEL4.src.rpm 20edf00d3f726e8ef40182a1cc74c309 IA-32: tar-1.14-9.RHEL4.i386.rpm 8e6c7bf72e4f4d48e066406614396a08 IA-64: tar-1.14-9.RHEL4.ia64.rpm 3bce09ef8d5829c5c41ec04f1a79036b PPC: tar-1.14-9.RHEL4.ppc.rpm 03483011461ab5395c04ca55eb42e6c0 s390: tar-1.14-9.RHEL4.s390.rpm d33b7ade56bff4f8d936481f9835cd4b s390x: tar-1.14-9.RHEL4.s390x.rpm d5e85f0e8daf289e5b75a0558741fdca x86_64: tar-1.14-9.RHEL4.x86_64.rpm 2002e57270db78163e556c0321b8e190 Red Hat Enterprise Linux ES (v. 4) SRPMS: tar-1.14-9.RHEL4.src.rpm 20edf00d3f726e8ef40182a1cc74c309 IA-32: tar-1.14-9.RHEL4.i386.rpm 8e6c7bf72e4f4d48e066406614396a08 IA-64: tar-1.14-9.RHEL4.ia64.rpm 3bce09ef8d5829c5c41ec04f1a79036b x86_64: tar-1.14-9.RHEL4.x86_64.rpm 2002e57270db78163e556c0321b8e190 Red Hat Enterprise Linux WS (v. 4) SRPMS: tar-1.14-9.RHEL4.src.rpm 20edf00d3f726e8ef40182a1cc74c309 IA-32: tar-1.14-9.RHEL4.i386.rpm 8e6c7bf72e4f4d48e066406614396a08 IA-64: tar-1.14-9.RHEL4.ia64.rpm 3bce09ef8d5829c5c41ec04f1a79036b x86_64: tar-1.14-9.RHEL4.x86_64.rpm 2002e57270db78163e556c0321b8e190 (The unlinked packages above are only available from the Red Hat Network) Bugs fixed (see bugzilla for more information) 181772 - CVE-2006-0300 GNU tar heap overlfow bug References http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0300 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/ [***** End RHSA-2006:0232-3 *****] _______________________________________________________________________________ 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. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) Q-131: IBM - Potential Buffer Overflow and Directory Traversal Vulnerabilities Q-132: Heimdal Q-133: Security Vulnerability in the hsfs(7FS) File System Q-134: Metamail Security Update Q-135: PostgreSQL Database Privilege Escalation Vulnerability Q-136: HP System Management Homepage (SMH) Running on Windows Q-137: Oracle Security Update Q-138: Apple Security Update 2006-001 Q-139: libtasn1-2 Q-140: Oracle Diagnostic Tools do not properly authenticate users