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CentOS 9 : xorg-x11-server-1.20.11-18.el9

high Nessus Plugin ID 191178

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Synopsis

The remote CentOS host is missing a security update for xorg-x11-server-Xdmx.

Description

The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the xorg-x11-server-1.20.11-18.el9 build changelog.

 - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation.
 If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
 (CVE-2023-1393)

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

Solution

Update the CentOS 9 Stream xorg-x11-server-Xdmx package.

See Also

https://kojihub.stream.centos.org/koji/buildinfo?buildID=31462

Plugin Details

Severity: High

ID: 191178

File Name: centos9_xorg-x11-server-1_20_11-18.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/29/2024

Updated: 4/26/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, 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-2023-1393

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:centos:centos:xorg-x11-server-xvfb, p-cpe:/a:centos:centos:xorg-x11-server-xdmx, p-cpe:/a:centos:centos:xorg-x11-server-common, cpe:/a:centos:centos:9, p-cpe:/a:centos:centos:xorg-x11-server-devel, p-cpe:/a:centos:centos:xorg-x11-server-xorg, p-cpe:/a:centos:centos:xorg-x11-server-xephyr, p-cpe:/a:centos:centos:xorg-x11-server-xnest, p-cpe:/a:centos:centos:xorg-x11-server-source

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 4/3/2023

Vulnerability Publication Date: 3/29/2023

Reference Information

CVE: CVE-2023-1393