USN-492-1: tcpdump vulnerability

31 July 2007

tcpdump vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description


A flaw was discovered in the BGP dissector of tcpdump. Remote attackers could send specially crafted packets and execute arbitrary code with user privileges.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 7.04
tcpdump - 3.9.5-2ubuntu1
Ubuntu 6.10
tcpdump - 3.9.4-4ubuntu0.2
Ubuntu 6.06 LTS
tcpdump - 3.9.4-2ubuntu0.2

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the necessary changes.