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Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-084)

medium Nessus Plugin ID 243200

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Synopsis

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

Description

The version of kernel installed on the remote host is prior to 5.15.187-130.192. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-084 advisory.

 In the Linux kernel, the following vulnerability has been resolved:

 btrfs: don't drop extent_map for free space inode on write error (CVE-2024-26726)

 In the Linux kernel, the following vulnerability has been resolved:

 tracing: Verify event formats that have %*p.. (CVE-2025-37938)

 In the Linux kernel, the following vulnerability has been resolved:

 net: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY (CVE-2025-37945)

 In the Linux kernel, the following vulnerability has been resolved:

 genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie (CVE-2025-38062)

 In the Linux kernel, the following vulnerability has been resolved:

 virtio: break and reset virtio devices on device_shutdown() (CVE-2025-38064)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'yum update kernel' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2KERNEL-5.15-2025-084.html

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

https://explore.alas.aws.amazon.com/CVE-2024-26726.html

https://explore.alas.aws.amazon.com/CVE-2025-37938.html

https://explore.alas.aws.amazon.com/CVE-2025-37945.html

https://explore.alas.aws.amazon.com/CVE-2025-38062.html

https://explore.alas.aws.amazon.com/CVE-2025-38064.html

Plugin Details

Severity: Medium

ID: 243200

File Name: al2_ALASKERNEL-5_15-2025-084.nasl

Version: 1.2

Type: local

Agent: unix

Published: 7/30/2025

Updated: 8/4/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2024-26726

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/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:python-perf, p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:python-perf-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:kernel-livepatch-5.15.187-130.192, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-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: 7/30/2025

Vulnerability Publication Date: 5/20/2025

Reference Information

CVE: CVE-2024-26726, CVE-2025-37938, CVE-2025-37945, CVE-2025-38062, CVE-2025-38064