USN-3258-1: Dovecot vulnerability

Publication date

10 April 2017

Overview

Dovecot could be made to crash if it received specially crafted input.


Packages

  • dovecot - IMAP and POP3 email server

Details

It was discovered that Dovecot incorrectly handled some usernames. An attacker
could possibly use this issue to cause Dovecot to hang or crash, resulting in a
denial of service.

It was discovered that Dovecot incorrectly handled some usernames. An attacker
could possibly use this issue to cause Dovecot to hang or crash, resulting in a
denial of service.

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
16.10 yakkety dovecot-core –  1:2.2.24-1ubuntu1.2
16.04 xenial dovecot-core –  1:2.2.22-1ubuntu2.3

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