Detections
Analytics

Amazon Linux 2 : lvm2 (ALAS-2026-4073)

medium Nessus Plugin ID 377903

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of lvm2 installed on the remote host is prior to 2.02.187-6. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-4073 advisory.

 A flaw was found in libdm. A remote attacker could craft a malicious Logical Volume Manager (LVM) metadata configuration with deeply nested structures. This could lead to uncontrolled recursion in the libdm configuration file parser, exhausting the stack and causing any LVM command reading the metadata to crash.
 This vulnerability results in a Denial of Service (DoS) for affected systems. (CVE-2026-19617)

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 'yum update lvm2' or or 'yum update --advisory ALAS2-2026-4073' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2-2026-4073.html

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

https://explore.alas.aws.amazon.com/CVE-2026-19617.html

Plugin Details

Severity: Medium

ID: 377903

File Name: al2_ALAS-2026-4073.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/9/2026

Updated: 11/9/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.88

CVSS v2

Risk Factor: Low

Base Score: 3.6

Temporal Score: 2.7

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

CVSS Score Source: CVE-2026-19617

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:cmirror-standalone, p-cpe:/a:amazon:linux:cmirror, p-cpe:/a:amazon:linux:device-mapper-devel, p-cpe:/a:amazon:linux:device-mapper-event-devel, p-cpe:/a:amazon:linux:device-mapper-event-libs, p-cpe:/a:amazon:linux:device-mapper-event, p-cpe:/a:amazon:linux:device-mapper-libs, p-cpe:/a:amazon:linux:device-mapper, p-cpe:/a:amazon:linux:lvm2-cluster-standalone, p-cpe:/a:amazon:linux:lvm2-cluster, p-cpe:/a:amazon:linux:lvm2-debuginfo, p-cpe:/a:amazon:linux:lvm2-devel, p-cpe:/a:amazon:linux:lvm2-libs, p-cpe:/a:amazon:linux:lvm2-lockd, p-cpe:/a:amazon:linux:lvm2-python-boom, p-cpe:/a:amazon:linux:lvm2-python-libs, p-cpe:/a:amazon:linux:lvm2-sysvinit, p-cpe:/a:amazon:linux:lvm2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2026

Vulnerability Publication Date: 8/14/2026

Reference Information

CVE: CVE-2026-19617