Tcpdump is a command line tool for monitoring network traffic.
A denial of service bug was found in tcpdump during the processing of certain network packets. It is possible for an attacker to inject a carefully crafted packet onto the network, crashing a running tcpdump session. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-1267 to this issue.
Users of tcpdump are advised to upgrade to these erratum packages, which contain backported security patches and are not vulnerable to these issues.