USN-5509-1: Dovecot vulnerability

Publication date

11 July 2022

Overview

Dovecot could allow unintended access to network services.


Packages

  • dovecot - IMAP and POP3 email server

Details

Julian Brook discovered that Dovecot incorrectly handled multiple passdb
configuration entries. In certain configurations, a remote attacker could
possibly use this issue to escalate privileges.

Julian Brook discovered that Dovecot incorrectly handled multiple passdb
configuration entries. In certain configurations, a remote attacker could
possibly use this issue to escalate privileges.

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
22.04 jammy dovecot-core –  1:2.3.16+dfsg1-3ubuntu2.1
21.10 impish dovecot-core –  1:2.3.13+dfsg1-1ubuntu3.1
20.04 focal dovecot-core –  1:2.3.7.2-1ubuntu3.6
18.04 bionic dovecot-core –  1:2.2.33.2-1ubuntu4.8

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

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