Slackware Linux 15.0 / current xorg-server Multiple Vulnerabilities (SSA:2022-194-01)

high Nessus Plugin ID 163089

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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. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2022-194-01 advisory.

- A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root. (CVE-2022-2320)

- A flaw was found in the Xorg-x11-server. An out-of-bounds access issue can occur in the ProcXkbSetGeometry function due to improper validation of the request length. (CVE-2022-2319)

Note that Nessus has not tested for these issues 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: 163089

File Name: Slackware_SSA_2022-194-01.nasl

Version: 1.4

Type: local

Family: Slackware Local Security Checks

Published: 7/13/2022

Updated: 3/21/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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-2022-2320

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

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

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2022-2319, CVE-2022-2320

Detections

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