Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-114 (ALASKERNEL-5.4-2025-114)

high Nessus Plugin ID 274636

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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 5.4.301-221.445. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2025-114 advisory.

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

fs: dlm: fix invalid derefence of sb_lvbptr (CVE-2022-50516)

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

scsi: target: target_core_configfs: Add length check to avoid buffer overflow (CVE-2025-39998)

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

scsi: mvsas: Fix use-after-free bugs in mvs_work_queue (CVE-2025-40001)

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

ipvs: Defer ip_vs_ftp unregister during netns cleanup (CVE-2025-40018)

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

crypto: essiv - Check ssize for decryption and in-place encryption (CVE-2025-40019)

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

KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)

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

pinctrl: check the return value of pinmux_ops::get_function_name() (CVE-2025-40030)

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

Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak (CVE-2025-40035)

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

tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (CVE-2025-40042)

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

fs: udf: fix OOB read in lengthAllocDescs handling (CVE-2025-40044)

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

uio_hv_generic: Let userspace take care of interrupt mask (CVE-2025-40048)

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

Squashfs: fix uninit-value in squashfs_get_parent (CVE-2025-40049)

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

pps: fix warning in pps_register_cdev when register device fail (CVE-2025-40070)

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

bpf: Explicitly check accesses to bpf_sock_addr (CVE-2025-40078)

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

perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (CVE-2025-40081)

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

NFSD: Define a proc_layoutcommit for the FlexFiles layout type (CVE-2025-40087)

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

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() (CVE-2025-40088)

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

vfs: Don't leak disconnected dentries on umount (CVE-2025-40105)

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' or or 'yum update --advisory ALAS2KERNEL-5.4-2025-114' to update your system.

Plugin Details

Severity: High

ID: 274636

File Name: al2_ALASKERNEL-5_4-2025-114.nasl

Version: 1.2

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 11/10/2025

Updated: 11/17/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.1

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.7

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

CVSS Score Source: CVE-2025-40019

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

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

Temporal Vector: CVSS:3.0/E:P/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:kernel-devel, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:python-perf-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: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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/10/2025

Vulnerability Publication Date: 10/7/2025

Reference Information

CVE: CVE-2022-50516, CVE-2025-39998, CVE-2025-40001, CVE-2025-40018, CVE-2025-40019, CVE-2025-40026, CVE-2025-40030, CVE-2025-40035, CVE-2025-40042, CVE-2025-40044, CVE-2025-40048, CVE-2025-40049, CVE-2025-40070, CVE-2025-40078, CVE-2025-40081, CVE-2025-40087, CVE-2025-40088, CVE-2025-40105

Detections

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