Ubuntu Security Notices
USN-3556-2

USN-3556-2: Dovecot vulnerabilities

Publication date

1 February 2018

Overview

Several security issues were fixed in Dovecot.

Releases

12.04

Packages

dovecot - IMAP and POP3 email server

Details

USN-3556-1 fixed vulnerabilities in Dovecot. This update
provides the corresponding update for Ubuntu 12.04 ESM.

It was discovered that Dovecot incorrectly handled certain authentications.
An attacker could possibly use this to bypass authentication and access
sensitive information. (CVE-2013-6171)

Original advisory details:

It was discovered that Dovecot incorrectly handled certain authentications.
An attacker could possibly use this to cause a denial of service. (CVE-2017-15132)

USN-3556-1 fixed vulnerabilities in Dovecot. This update
provides the corresponding update for Ubuntu 12.04 ESM.

It was discovered that Dovecot incorrectly handled certain authentications.
An attacker could possibly use this to bypass authentication and access
sensitive information. (CVE-2013-6171)

Original advisory details:

It was discovered that Dovecot incorrectly handled certain authentications.
An attacker could possibly use this to cause a denial of service. (CVE-2017-15132)

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
12.04 precise	dovecot-core – 1:2.0.19-0ubuntu2.4

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References

USN-3556-1

USN-3556-1