Detections
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Amazon Linux 2023 : libXpm, libXpm-devel (ALAS2023-2026-1656)
critical Nessus Plugin ID 315624
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Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1656 advisory.As per upstream advisory: libXpm Out-of-bounds read in xpmNextWord() (CVE-2026-4367)
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 libXpm --releasever 2023.11.20260511' or or 'dnf update --advisory ALAS2023-2026-1656 --releasever 2023.11.20260511' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1656.html
Plugin Details
Severity: Critical
ID: 315624
File Name: al2023_ALAS2023-2026-1656.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 5/20/2026
Updated: 5/20/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS Score Source: CVE-2026-4367
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 7.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:libxpm, p-cpe:/a:amazon:linux:libxpm-debuginfo, p-cpe:/a:amazon:linux:libxpm-devel, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:libxpm-debugsource, p-cpe:/a:amazon:linux:libxpm-devel-debuginfo
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 5/14/2026
Vulnerability Publication Date: 4/27/2026
Reference Information
CVE: CVE-2026-4367