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Ubuntu 14.04 LTS / 16.04 LTS : X.Org X server vulnerabilities (USN-3456-1)

critical Nessus Plugin ID 103921

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3456-1 advisory.

 It was discovered that the X.Org X server incorrectly handled certain lengths. An attacker able to connect to an X server, either locally or remotely, could use these issues to crash the server, or possibly execute arbitrary code.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-3456-1

Plugin Details

Severity: Critical

ID: 103921

File Name: ubuntu_USN-3456-1.nasl

Version: 3.11

Type: local

Agent: unix

Published: 10/18/2017

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2017-12187

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:xdmx, p-cpe:/a:canonical:ubuntu_linux:xserver-xephyr, p-cpe:/a:canonical:ubuntu_linux:xserver-common, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-core-udeb, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-dev-lts-xenial, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-dev, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-legacy-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:xmir, p-cpe:/a:canonical:ubuntu_linux:xvfb, p-cpe:/a:canonical:ubuntu_linux:xserver-xephyr-lts-xenial, p-cpe:/a:canonical:ubuntu_linux:xorg-server-source-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:xwayland-lts-xenial, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-core, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-xmir, p-cpe:/a:canonical:ubuntu_linux:xnest, p-cpe:/a:canonical:ubuntu_linux:xorg-server-source, p-cpe:/a:canonical:ubuntu_linux:xdmx-tools, p-cpe:/a:canonical:ubuntu_linux:xwayland-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-dev-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-legacy, p-cpe:/a:canonical:ubuntu_linux:xmir-hwe-16.04, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:xserver-xephyr-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:xwayland, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-core-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:xorg-server-source-lts-xenial, p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-core-lts-xenial

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: 10/17/2017

Vulnerability Publication Date: 1/24/2018

Reference Information

CVE: CVE-2017-12176, CVE-2017-12177, CVE-2017-12178, CVE-2017-12179, CVE-2017-12180, CVE-2017-12181, CVE-2017-12182, CVE-2017-12183, CVE-2017-12184, CVE-2017-12185, CVE-2017-12186, CVE-2017-12187

USN: 3456-1