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Debian DLA-3310-1 : xorg-server - LTS security update

high Nessus Plugin ID 171143

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Synopsis

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

Description

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3310 advisory.

 - xorg-x11-server: DeepCopyPointerClasses use-after-free leads to privilege elevation (CVE-2023-0494)

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

Solution

Upgrade the xorg-server packages.

For Debian 10 buster, this problem has been fixed in version 2

See Also

https://security-tracker.debian.org/tracker/source-package/xorg-server

https://www.debian.org/lts/security/2023/dla-3310

https://security-tracker.debian.org/tracker/CVE-2023-0494

https://packages.debian.org/source/buster/xorg-server

Plugin Details

Severity: High

ID: 171143

File Name: debian_DLA-3310.nasl

Version: 1.0

Type: local

Agent: unix

Published: 2/8/2023

Updated: 2/8/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2023-0494

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: p-cpe:/a:debian:debian_linux:xdmx, p-cpe:/a:debian:debian_linux:xdmx-tools, p-cpe:/a:debian:debian_linux:xnest, p-cpe:/a:debian:debian_linux:xorg-server-source, p-cpe:/a:debian:debian_linux:xserver-common, p-cpe:/a:debian:debian_linux:xserver-xephyr, p-cpe:/a:debian:debian_linux:xserver-xorg-core, p-cpe:/a:debian:debian_linux:xserver-xorg-dev, p-cpe:/a:debian:debian_linux:xserver-xorg-legacy, p-cpe:/a:debian:debian_linux:xvfb, p-cpe:/a:debian:debian_linux:xwayland, cpe:/o:debian:debian_linux:10.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/7/2023

Vulnerability Publication Date: 2/7/2023

Reference Information

CVE: CVE-2023-0494