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Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1186)

high Nessus Plugin ID 264826

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Synopsis

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

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1186 advisory.

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

 smb: client: fix UAF in decryption with multichannel (CVE-2025-37750)

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

 mptcp: make fallback action and fallback decision atomic (CVE-2025-38491)

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

 eventpoll: Fix semi-unbounded recursion (CVE-2025-38614)

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

 ppp: fix race conditions in ppp_fill_forward_path (CVE-2025-39673)

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

 net: bridge: fix soft lockup in br_multicast_query_expired() (CVE-2025-39773)

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 2023.8.20250915' or or 'dnf update --advisory ALAS2023-2025-1186 --releasever 2023.8.20250915' to update your system.

See Also

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

https://explore.alas.aws.amazon.com/CVE-2025-37750.html

https://explore.alas.aws.amazon.com/CVE-2025-38491.html

https://explore.alas.aws.amazon.com/CVE-2025-38614.html

https://alas.aws.amazon.com//AL2023/ALAS2023-2025-1186.html

https://explore.alas.aws.amazon.com/CVE-2025-39673.html

https://explore.alas.aws.amazon.com/CVE-2025-39773.html

Plugin Details

Severity: High

ID: 264826

File Name: al2023_ALAS2023-2025-1186.nasl

Version: 1.3

Type: local

Agent: unix

Published: 9/15/2025

Updated: 9/22/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2025-37750

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:kernel-modules-extra-common, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-modules-extra, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:python3-perf, p-cpe:/a:amazon:linux:kernel-libbpf-static, p-cpe:/a:amazon:linux:kernel-libbpf-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-libbpf, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-libbpf-devel, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-tools-devel, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:python3-perf-debuginfo, p-cpe:/a:amazon:linux:kernel-livepatch-6.1.150-174.273, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2025

Vulnerability Publication Date: 5/1/2025

Reference Information

CVE: CVE-2025-37750, CVE-2025-38491, CVE-2025-38614, CVE-2025-39673, CVE-2025-39773