USN-307-1: mutt vulnerability

28 June 2006

mutt vulnerability

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

  • Ubuntu 6.06 LTS
  • Ubuntu 5.10
  • Ubuntu 5.04

Software Description


TAKAHASHI Tamotsu discovered that mutt’s IMAP backend did not sufficiently check the validity of namespace strings. If an user connects to a malicious IMAP server, that server could exploit this to crash mutt or even execute arbitrary code with the privileges of the mutt user.

Update instructions

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

Ubuntu 6.06 LTS
mutt - 1.5.11-3ubuntu2.1
Ubuntu 5.10
mutt - 1.5.9-2ubuntu1.1
Ubuntu 5.04
mutt - 1.5.6-20040907+2ubuntu0.1

To update your system, please follow these instructions:

After a standard system upgrade you need to restart mutt to effect the necessary changes.