Red Hat Linux Advisory: tcpdumpJan 15, 2004, 21:55 (0 Talkback[s])
Red Hat Security Advisory
Updated tcpdump, libpcap, and arpwatch packages fix a number of vulnerabilities in ISAKMP parsing.
2. Relevant releases/architectures:
Red Hat Linux 9 - i386
3. Problem description:
Tcpdump is a command-line tool for monitoring network traffic.
George Bakos discovered flaws in the ISAKMP decoding routines of tcpdump versions prior to 3.8.1. The Common Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name CAN-2003-0989 to this issue.
Jonathan Heusser discovered two additional flaws in the ISAKMP decoding routines of tcpdump versions up to and including 3.8.1.
Remote attackers could potentially exploit these issues by sending carefully-crafted packets to a victim. If the victim uses tcpdump, these pakets could result in a denial of service, or possibly execute arbitrary code as the 'pcap' user.
Users of tcpdump are advised to upgrade to these erratum packages, which contain backported security patches and are not vulnerable to these issues.
Before applying this update, make sure all previously released errata relevant to your system have been applied.
Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command:
This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.
5. RPMs required:
Red Hat Linux 9:
MD5 sum Package Name
These packages are GPG signed by Red Hat for security. Our key is available from https://www.redhat.com/security/keys.html
You can verify each package with the following command:
rpm --checksig -v <filename>
If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command:
The Red Hat security contact is <firstname.lastname@example.org>. More contact details at https://www.redhat.com/solutions/security/news/contact.html
Copyright 2003 Red Hat, Inc.
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