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AlmaLinux 9 : xorg-x11-server (ALSA-2025:20961)

high Nessus Plugin ID 275801

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Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:20961 advisory.

 * xorg: xmayland: Use-after-free in XPresentNotify structure creation (CVE-2025-62229)
 * xorg: xwayland: Use-after-free in Xkb client resource removal (CVE-2025-62230)
 * xorg: xmayland: Value overflow in XkbSetCompatMap() (CVE-2025-62231)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

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

Solution

Update the affected packages.

See Also

https://errata.almalinux.org/9/ALSA-2025-20961.html

https://access.redhat.com/errata/RHSA-2025:20961

Plugin Details

Severity: High

ID: 275801

File Name: alma_linux_ALSA-2025-20961.nasl

Version: 1.1

Type: local

Published: 11/19/2025

Updated: 11/19/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.0

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2025-62231

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: cpe:/o:alma:linux:9::sap, p-cpe:/a:alma:linux:xorg-x11-server-xvfb, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:xorg-x11-server-source, p-cpe:/a:alma:linux:xorg-x11-server-devel, p-cpe:/a:alma:linux:xorg-x11-server-common, cpe:/o:alma:linux:9::appstream, p-cpe:/a:alma:linux:xorg-x11-server-xnest, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::sap_hana, p-cpe:/a:alma:linux:xorg-x11-server-xorg, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9, p-cpe:/a:alma:linux:xorg-x11-server-xephyr, p-cpe:/a:alma:linux:xorg-x11-server-xdmx, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::crb

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/11/2025

Vulnerability Publication Date: 10/28/2025

Reference Information

CVE: CVE-2025-62229, CVE-2025-62230, CVE-2025-62231

CWE: 190, 416

RHSA: 2025:20961