Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-075)

high Nessus Plugin ID 240295

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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 5.15.185-126.190. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-075 advisory.

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

sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() (CVE-2025-38000)

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

net_sched: hfsc: Address reentrant enqueue adding class to eltree twice (CVE-2025-38001)

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

can: bcm: add missing rcu read protection for procfs content (CVE-2025-38003)

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

can: bcm: add locking for bcm_op runtime updates (CVE-2025-38004)

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

padata: do not leak refcount in reorder_work (CVE-2025-38031)

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

btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref (CVE-2025-38034)

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

vxlan: Annotate FDB data races (CVE-2025-38037)

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

virtio_ring: Fix data race by tagging event_triggered as racy for KCSAN (CVE-2025-38048)

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

smb: client: Fix use-after-free in cifs_fill_dirent (CVE-2025-38051)

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

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock (CVE-2025-38058)

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

dm cache: prevent BUG_ON by blocking retries on failed device resumes (CVE-2025-38066)

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

crypto: lzo - Fix compression buffer overrun (CVE-2025-38068)

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

crypto: algif_hash - fix double free in hash_accept (CVE-2025-38079)

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.

Plugin Details

Severity: High

ID: 240295

File Name: al2_ALASKERNEL-5_15-2025-075.nasl

Version: 1.3

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 6/23/2025

Updated: 8/4/2025

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

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2025-38001

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: p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:python-perf-debuginfo, p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-livepatch-5.15.185-126.190, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:python-perf

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

Exploit Available: true

Exploit Ease: No known exploits are available

Patch Publication Date: 6/23/2025

Vulnerability Publication Date: 6/6/2025

Reference Information

CVE: CVE-2025-38000, CVE-2025-38001, CVE-2025-38003, CVE-2025-38004, CVE-2025-38031, CVE-2025-38034, CVE-2025-38037, CVE-2025-38048, CVE-2025-38051, CVE-2025-38058, CVE-2025-38066, CVE-2025-38068, CVE-2025-38079

Detections

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