Detections
Analytics

Amazon Linux 2023 : mesa-dri-drivers, mesa-filesystem, mesa-libd3d (ALAS2023-2026-1623)

critical Nessus Plugin ID 311316

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1623 advisory.

 In Mesa before 25.3.6 and 26 before 26.0.1, out-of-bounds memory access can occur in WebGPU because the amount of to-be-allocated data depends on an untrusted party, and is then used for alloca.
 (CVE-2026-40393)

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

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

Solution

Run 'dnf update mesa --releasever 2023.11.20260427' or or 'dnf update --advisory ALAS2023-2026-1623 --releasever 2023.11.20260427' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1623.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-40393.html

Plugin Details

Severity: Critical

ID: 311316

File Name: al2023_ALAS2023-2026-1623.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/30/2026

Updated: 4/30/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-40393

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:amazon:linux:mesa-libopencl-devel, p-cpe:/a:amazon:linux:mesa-libd3d-devel, p-cpe:/a:amazon:linux:mesa-libegl-devel, p-cpe:/a:amazon:linux:mesa-libopencl, p-cpe:/a:amazon:linux:mesa-debuginfo, p-cpe:/a:amazon:linux:mesa-vulkan-drivers-debuginfo, p-cpe:/a:amazon:linux:mesa-libgl-devel, p-cpe:/a:amazon:linux:mesa-dri-drivers-debuginfo, p-cpe:/a:amazon:linux:mesa-libglapi-debuginfo, p-cpe:/a:amazon:linux:mesa-vulkan-drivers, p-cpe:/a:amazon:linux:mesa-libgl, p-cpe:/a:amazon:linux:mesa-libosmesa, p-cpe:/a:amazon:linux:mesa-libgbm-debuginfo, p-cpe:/a:amazon:linux:mesa-libegl-debuginfo, p-cpe:/a:amazon:linux:mesa-libegl, p-cpe:/a:amazon:linux:mesa-libopencl-debuginfo, p-cpe:/a:amazon:linux:mesa-debugsource, p-cpe:/a:amazon:linux:mesa-filesystem, p-cpe:/a:amazon:linux:mesa-va-drivers, p-cpe:/a:amazon:linux:mesa-libd3d, p-cpe:/a:amazon:linux:mesa-libosmesa-debuginfo, p-cpe:/a:amazon:linux:mesa-libglapi, p-cpe:/a:amazon:linux:mesa-libxatracker-debuginfo, p-cpe:/a:amazon:linux:mesa-vdpau-drivers, p-cpe:/a:amazon:linux:mesa-libxatracker, p-cpe:/a:amazon:linux:mesa-libgl-debuginfo, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:mesa-libd3d-debuginfo, p-cpe:/a:amazon:linux:mesa-libgbm-devel, p-cpe:/a:amazon:linux:mesa-libxatracker-devel, p-cpe:/a:amazon:linux:mesa-libosmesa-devel, p-cpe:/a:amazon:linux:mesa-dri-drivers, p-cpe:/a:amazon:linux:mesa-libgbm

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/30/2026

Vulnerability Publication Date: 4/12/2026

Reference Information

CVE: CVE-2026-40393