Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : dovecot vulnerability (USN-3556-1)

Medium Nessus Plugin ID 106582


The remote Ubuntu host is missing a security-related patch.


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

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected dovecot-core package.

Plugin Details

Severity: Medium

ID: 106582

File Name: ubuntu_USN-3556-1.nasl

Version: $Revision: 3.3 $

Type: local

Agent: unix

Published: 2018/02/02

Modified: 2018/02/20

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C


Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:dovecot-core, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:17.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2018/02/01

Reference Information

CVE: CVE-2017-15132

OSVDB: 173522

USN: 3556-1