Debian DSA-4893-1 : xorg-server - security update

high Nessus Plugin ID 148841

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Synopsis

The remote Debian host is missing a security-related update.

Description

Jan-Niklas Sohn discovered that missing input sanitising in the XInput extension of the X.org X server may result in privilege escalation if the X server is running privileged.

Solution

Upgrade the xorg-server packages.

For the stable distribution (buster), this problem has been fixed in version 2:1.20.4-1+deb10u3.

Plugin Details

Severity: High

ID: 148841

File Name: debian_DSA-4893.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/20/2021

Updated: 5/24/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-3472

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:xorg-server

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/19/2021

Vulnerability Publication Date: 4/26/2021

Reference Information

CVE: CVE-2021-3472

DSA: 4893

Detections

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