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Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-089 (ALASKERNEL-5.15-2025-089)

high Nessus Plugin ID 265080

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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 5.15.191-132.213. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-089 advisory.

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

 bpf: Fix helper writes to read-only maps (CVE-2024-49861)

 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:

 net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477)

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

 smb: client: fix use-after-free in crypt_message when using async crypto (CVE-2025-38488)

 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 'yum update kernel' or or 'yum update --advisory ALAS2KERNEL-5.15-2025-089' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2KERNEL-5.15-2025-089.html

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

https://explore.alas.aws.amazon.com/CVE-2024-49861.html

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

https://explore.alas.aws.amazon.com/CVE-2025-38477.html

https://explore.alas.aws.amazon.com/CVE-2025-38488.html

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

Plugin Details

Severity: High

ID: 265080

File Name: al2_ALASKERNEL-5_15-2025-089.nasl

Version: 1.4

Type: local

Agent: unix

Published: 9/16/2025

Updated: 10/2/2025

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: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2024-49861

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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:kernel, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:python-perf-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:python-perf, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:kernel-livepatch-5.15.191-132.213

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/16/2025

Vulnerability Publication Date: 10/21/2024

Reference Information

CVE: CVE-2024-49861, CVE-2025-37750, CVE-2025-38477, CVE-2025-38488, CVE-2025-39773