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Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-086)

high Nessus Plugin ID 243433

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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 5.15.189-131.202. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-086 advisory.

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

 net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null (CVE-2022-50073)

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

 codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() (CVE-2025-37798)

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

 xsk: Fix race condition in AF_XDP generic RX path (CVE-2025-37920)

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

 sch_htb: make htb_qlen_notify() idempotent (CVE-2025-37932)

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

 serial: mctrl_gpio: split disable_ms into sync and no_sync APIs (CVE-2025-38040)

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

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

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

 rseq: Fix segfault on registration when rseq_cs is non-zero (CVE-2025-38067)

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-5.15-2025-086.html

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

https://explore.alas.aws.amazon.com/CVE-2022-50073.html

https://explore.alas.aws.amazon.com/CVE-2025-37798.html

https://explore.alas.aws.amazon.com/CVE-2025-37920.html

https://explore.alas.aws.amazon.com/CVE-2025-37932.html

https://explore.alas.aws.amazon.com/CVE-2025-38040.html

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

https://explore.alas.aws.amazon.com/CVE-2025-38067.html

Plugin Details

Severity: High

ID: 243433

File Name: al2_ALASKERNEL-5_15-2025-086.nasl

Version: 1.1

Type: local

Agent: unix

Published: 8/4/2025

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: 6.0

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-2025-37798

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: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:kernel-livepatch-5.15.189-131.202, p-cpe:/a:amazon:linux:python-perf, 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-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-tools-devel, 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:bpftool, p-cpe:/a:amazon:linux:python-perf-debuginfo, 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: 7/29/2025

Vulnerability Publication Date: 5/2/2025

Reference Information

CVE: CVE-2022-50073, CVE-2025-37798, CVE-2025-37920, CVE-2025-37932, CVE-2025-38040, CVE-2025-38064, CVE-2025-38067