USN-666-1: Dovecot vulnerability

Ubuntu Security Notice USN-666-1

7th November, 2008

dovecot vulnerability

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

  • Ubuntu 8.10

Software description

  • dovecot

Details

It was discovered that certain email headers were not correctly handled
by Dovecot. If a remote attacker sent a specially crafted email to a
user with a mailbox managed by Dovecot, that user's mailbox would become
inaccessible through Dovecot, leading to a denial of service.

Update instructions

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

Ubuntu 8.10:
dovecot-imapd 1:1.1.4-0ubuntu1.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2008-4907