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Slackware Linux 15.0 / current xorg-server Vulnerability (SSA:2023-038-02)

high Nessus Plugin ID 171102

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Synopsis

The remote Slackware Linux host is missing a security update to xorg-server.

Description

The version of xorg-server installed on the remote host is prior to 1.20.14 / 21.1.4 / 21.1.7 / 22.1.8. It is, therefore, affected by a vulnerability as referenced in the SSA:2023-038-02 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 affected xorg-server package.

Plugin Details

Severity: High

ID: 171102

File Name: Slackware_SSA_2023-038-02.nasl

Version: 1.0

Type: local

Published: 2/7/2023

Updated: 2/7/2023

Supported Sensors: 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:slackware:slackware_linux:xorg-server, p-cpe:/a:slackware:slackware_linux:xorg-server-xephyr, p-cpe:/a:slackware:slackware_linux:xorg-server-xnest, p-cpe:/a:slackware:slackware_linux:xorg-server-xvfb, p-cpe:/a:slackware:slackware_linux:xorg-server-xwayland, cpe:/o:slackware:slackware_linux, cpe:/o:slackware:slackware_linux:15.0

Required KB Items: Host/local_checks_enabled, Host/Slackware/release, Host/Slackware/packages

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2/7/2023

Reference Information

CVE: CVE-2023-0494