Detections
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Azure Linux 3.0 Security Update: xorg-x11-server / xorg-x11-server-Xwayland (CVE-2025-26598)

high Nessus Plugin ID 233121

Synopsis

The remote Azure Linux host is missing one or more security updates.

Description

The version of xorg-x11-server / xorg-x11-server-Xwayland installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-26598 advisory.

 - An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the last element of the list if no matching device ID is found, which can lead to out-of-bounds memory access. (CVE-2025-26598)

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 affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2025-26598

Plugin Details

Severity: High

ID: 233121

File Name: azure_linux_CVE-2025-26598.nasl

Version: 1.1

Type: local

Published: 3/20/2025

Updated: 3/20/2025

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-2025-26598

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:microsoft:azure_linux:xorg-x11-server-xnest, p-cpe:/a:microsoft:azure_linux:xorg-x11-server-xwayland-devel, p-cpe:/a:microsoft:azure_linux:xorg-x11-server-xwayland-debuginfo, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:xorg-x11-server-xorg, p-cpe:/a:microsoft:azure_linux:xorg-x11-server-common, p-cpe:/a:microsoft:azure_linux:xorg-x11-server-devel, p-cpe:/a:microsoft:azure_linux:xorg-x11-server-xwayland, p-cpe:/a:microsoft:azure_linux:xorg-x11-server-xvfb

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/11/2025

Vulnerability Publication Date: 2/18/2025

Reference Information

CVE: CVE-2025-26598