USN-487-1: Dovecot vulnerability

17 July 2007

dovecot vulnerability

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

  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description

Details

It was discovered that Dovecot, when configured to use non-system-user spools and compressed folders, would allow directory traversals in mailbox names. Remote authenticated users could potentially read email owned by other users.

Update instructions

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

Ubuntu 7.04
dovecot-common - 1.0.rc17-1ubuntu2.1
Ubuntu 6.10
dovecot-common - 1.0.rc2-1ubuntu2.2
Ubuntu 6.06 LTS
dovecot-common - 1.0.beta3-3ubuntu5.5

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