__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN tcpdump Security Vulnerability [Debian Security Advisory DSA-1272-1] March 23, 2007 17:00 GMT Number R-189 [REVISED 14 Nov 2007] [REVISED 16 Nov 2007] ______________________________________________________________________________ PROBLEM: There is an off-by-one buffer overflow in tcpdump. PLATFORM: Debian GNU/Linux 3.1 (sarge) and 4.0 (etch) RHEL Desktop Workstation (v. 5 client) Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 5 client) Red Hat Desktop (v. 4) Red Hat Enterprise Linux AS, ES, WS (v. 4) DAMAGE: Allows denial of service. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is LOW. Allows denial of service. ASSESSMENT: ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-189.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2007/dsa-1272 ADDITIONAL LINKS: https://rhn.redhat.com/errata/RHSA-2007-0368.html https://rhn.redhat.com/errata/RHSA-2007-0387.html CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-1218 ______________________________________________________________________________ REVISION HISTORY: 11/14/2007 - revised R-189 to add a link to Red Hat RHSA-2007:0368-4 for RHEL Desktop Workstation (v. 5 client), Red Hat Enterprise Linux (v. 5 server), and Red Hat Enterprise Linux Desktop (v. 5 client). 11/16/2007 - revised R-189 to add a link to Red Hat RHSA-2007:0387-4 for Red Hat Desktop (v. 4) and Red Hat Enterprise Linux AS, ES, WS (v. 4). [***** Start Debian Security Advisory DSA-1272-1 *****] Debian Security Advisory DSA-1272-1 tcpdump -- buffer overflow Date Reported: 22 Mar 2007 Affected Packages: tcpdump Vulnerable: Yes Security database references: In Mitre's CVE dictionary: CVE-2007-1218. More information: Moritz Jodeit discovered an off-by-one buffer overflow in tcpdump, a powerful tool for network monitoring and data acquisition, which allows denial of service. For the stable distribution (sarge) this problem has been fixed in version 3.8.3-5sarge2. For the upcoming stable distribution (etch) this problem has been fixed in version 3.9.5-2. For the unstable distribution (sid) this problem has been fixed in version 3.9.5-2. We recommend that you upgrade your tcpdump package. Fixed in: Debian GNU/Linux 3.1 (sarge) Source: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2.dsc http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2. diff.gz http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3.orig.tar.gz Alpha: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ alpha.deb AMD64: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ amd64.deb ARM: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ arm.deb HPPA: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ hppa.deb Intel IA-32: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ ia64.deb Motorola 680x0: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ mips.deb Little endian MIPS: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge2_ sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1272-1 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Debian 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) R-179: Sun Java System Web Server Vulnerability R-180: Kernel Security and Bug Fix Update R-181: OpenBSD's IPV6 MBUFS Vulnerability R-182: OPC Server Vulnerability R-183: OpenAFS Vulnerability R-184: libwpd Security Update R-185: CA BrightStor ARCserve Backup Tape Engine and Portmapper Vulnerabilitites R-186: Lookup-el R-187: OpenOffice.org Security Update R-188: InterActual Player SyscheckObject ActiveX Vulnerability