1. Ubuntu Security Notices
  2. USN-1295-1

USN-1295-1: Dovecot vulnerability

Publication date

8 December 2011

Overview

Dovecot could be made to expose sensitive information over the network.

Releases

Packages

  • dovecot - IMAP and POP3 email server

Details

It was discovered that Dovecot incorrectly validated certificate hostnames
when being used as a POP3 and IMAP proxy. If a remote attacker were able to
perform a machine-in-the-middle attack, this flaw could be exploited to view
sensitive information.

It was discovered that Dovecot incorrectly validated certificate hostnames
when being used as a POP3 and IMAP proxy. If a remote attacker were able to
perform a machine-in-the-middle attack, this flaw could be exploited to view
sensitive information.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
11.10 oneiric dovecot-common –  1:2.0.13-1ubuntu3.2

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References

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