[USN-4110-1] Dovecot vulnerability

Leonidas S. Barbosa leo.barbosa at canonical.com
Wed Aug 28 14:07:17 UTC 2019

Ubuntu Security Notice USN-4110-1
August 28, 2019

dovecot vulnerability

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

- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS


Dovecot could be made to crash or execute arbitrary code if it
received a specially crafted data.

Software Description:
- dovecot: IMAP and POP3 email server


Nick Roessler and Rafi Rubin discovered that Dovecot incorrectly
handled certain data. An attacker could possibly use this issue
to cause a denial of service or execute arbitrary code.

Update instructions:

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

Ubuntu 19.04:
  dovecot-core                    1:

Ubuntu 18.04 LTS:
  dovecot-core                    1:

Ubuntu 16.04 LTS:
  dovecot-core                    1:2.2.22-1ubuntu2.11

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


Package Information:
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