Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : dovecot vulnerabilities (USN-3587-1)

Medium Nessus Plugin ID 107147

Synopsis

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

Description

It was discovered that Dovecot incorrectly handled parsing certain email addresses. A remote attacker could use this issue to cause Dovecot to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2017-14461)

It was discovered that Dovecot incorrectly handled TLS SNI config lookups. A remote attacker could possibly use this issue to cause Dovecot to crash, resulting in a denial of service. (CVE-2017-15130).

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.

Solution

Update the affected dovecot-core package.

Plugin Details

Severity: Medium

ID: 107147

File Name: ubuntu_USN-3587-1.nasl

Version: 3.5

Type: local

Agent: unix

Published: 2018/03/06

Modified: 2018/03/27

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5.5

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

CVSSv3

Base Score: 7.1

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

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

Patch Publication Date: 2018/03/05

Reference Information

CVE: CVE-2017-14461, CVE-2017-15130

USN: 3587-1