Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : libx11 vulnerabilities (USN-3758-1)

critical Nessus Plugin ID 112205

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Tobias Stoeckmann discovered that libx11 incorrectly handled certain images. An attacker could possibly use this issue to access sensitive information (CVE-2016-7942)

Tobias Stoeckmann discovered that libx11 incorrectly handled certain inputs. An attacker could possibly use this issue to access sensitive information. (CVE-2016-7943)

It was discovered that libx11 incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-14598, CVE-2018-14599, CVE-2018-14600).

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 libx11-6 and / or libx11-dev packages.

See Also

https://usn.ubuntu.com/3758-1/

Plugin Details

Severity: Critical

ID: 112205

File Name: ubuntu_USN-3758-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/31/2018

Updated: 9/18/2019

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libx11-6, p-cpe:/a:canonical:ubuntu_linux:libx11-dev, 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

Patch Publication Date: 8/30/2018

Vulnerability Publication Date: 12/13/2016

Reference Information

CVE: CVE-2016-7942, CVE-2016-7943, CVE-2018-14598, CVE-2018-14599, CVE-2018-14600

USN: 3758-1