Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : openssh vulnerabilities (USN-3809-1)

Medium Nessus Plugin ID 118795

Synopsis

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

Description

Robert Swiecki discovered that OpenSSH incorrectly handled certain messages. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-10708)

It was discovered that OpenSSH incorrectly handled certain requests.
An attacker could possibly use this issue to access sensitive information. (CVE-2018-15473).

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 openssh-server package.

See Also

https://usn.ubuntu.com/3809-1/

Plugin Details

Severity: Medium

ID: 118795

File Name: ubuntu_USN-3809-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/11/07

Modified: 2018/11/13

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:openssh-server, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:18.04:-:lts

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/11/06

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2016-10708, CVE-2018-15473

USN: 3809-1