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Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1544)

high Nessus Plugin ID 305232

Synopsis

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

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1544 advisory.

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

 fs: ntfs3: fix infinite loop in attr_load_runs_range on inconsistent metadata (CVE-2025-71265)

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

 fs: ntfs3: check return value of indx_find to avoid infinite loop (CVE-2025-71266)

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

 fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST (CVE-2025-71267)

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

 netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (CVE-2026-23231)

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

 RDMA/umad: Reject negative data_len in ib_umad_write (CVE-2026-23243)

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 'dnf update kernel --releasever 2023.11.20260406' or or 'dnf update --advisory ALAS2023-2026-1544 --releasever 2023.11.20260406' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1544.html

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

https://explore.alas.aws.amazon.com/CVE-2025-71265.html

https://explore.alas.aws.amazon.com/CVE-2025-71266.html

https://explore.alas.aws.amazon.com/CVE-2025-71267.html

https://explore.alas.aws.amazon.com/CVE-2026-23231.html

https://explore.alas.aws.amazon.com/CVE-2026-23243.html

Plugin Details

Severity: High

ID: 305232

File Name: al2023_ALAS2023-2026-1544.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/7/2026

Updated: 4/7/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-23231

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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:kernel-libbpf, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:python3-perf, p-cpe:/a:amazon:linux:kernel-livepatch-6.1.166-197.305, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-modules-extra-common, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:python3-perf-debuginfo, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-libbpf-static, p-cpe:/a:amazon:linux:kernel-libbpf-debuginfo, p-cpe:/a:amazon:linux:kernel-libbpf-devel, p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-modules-extra, 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: 4/7/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2025-71265, CVE-2025-71266, CVE-2025-71267, CVE-2026-23231, CVE-2026-23243