What is the vulnerability ID of this Dovecot vulnerability?

The vulnerability ID is USN-3556-1.

What is the title of the vulnerability?

The title of the vulnerability is 'USN-3556-1: Dovecot vulnerability'.

What is the description of the vulnerability?

The vulnerability involves an issue in Dovecot where it incorrectly handles certain authentications, potentially leading to a denial of service.

How can an attacker exploit this vulnerability?

An attacker can exploit this vulnerability to cause a denial of service.

How can I fix this vulnerability?

To fix this vulnerability, update the dovecot-core package to version 1:2.2.27-3ubuntu1.2 (for Ubuntu 17.10), 1:2.2.22-1ubuntu2.6 (for Ubuntu 16.04), or 1:2.2.9-1ubuntu2.3 (for Ubuntu 14.04).

Vulnerability/
USN-3556-1

1/2/2018

USN-3556-1: Dovecot vulnerability

First published: Thu Feb 01 2018(Updated: )

It was discovered that Dovecot incorrectly handled certain authentications. An attacker could possibly use this to cause a denial of service.

Affected Software	Affected Version	How to fix
All of
ubuntu/dovecot-core	<1:2.2.27-3ubuntu1.2	1:2.2.27-3ubuntu1.2
	=17.10
All of
ubuntu/dovecot-core	<1:2.2.22-1ubuntu2.6	1:2.2.22-1ubuntu2.6
	=16.04
All of
ubuntu/dovecot-core	<1:2.2.9-1ubuntu2.3	1:2.2.9-1ubuntu2.3
	=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2017-15132

Frequently Asked Questions

What is the vulnerability ID of this Dovecot vulnerability?
The vulnerability ID is USN-3556-1.
What is the title of the vulnerability?
The title of the vulnerability is 'USN-3556-1: Dovecot vulnerability'.
What is the description of the vulnerability?
The vulnerability involves an issue in Dovecot where it incorrectly handles certain authentications, potentially leading to a denial of service.
How can an attacker exploit this vulnerability?
An attacker can exploit this vulnerability to cause a denial of service.
How can I fix this vulnerability?
To fix this vulnerability, update the dovecot-core package to version 1:2.2.27-3ubuntu1.2 (for Ubuntu 17.10), 1:2.2.22-1ubuntu2.6 (for Ubuntu 16.04), or 1:2.2.9-1ubuntu2.3 (for Ubuntu 14.04).

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source/Ubuntu
anchor-related/USN-3556-2
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package-manager/ubuntu
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canonical/ubuntu ubuntu
version/ubuntu ubuntu/17.10
version/ubuntu ubuntu/16.04
version/ubuntu ubuntu/14.04

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