Amazon Linux 2 : kernel (ALAS-2025-2790)

high Nessus Plugin ID 233382

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 4.14.290-217.505. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2790 advisory.

An out-of-bounds write flaw was found in the Linux kernel's framebuffer-based console driver functionality in the way a user triggers ioctl FBIOPUT_VSCREENINFO with malicious data. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2021-33655)

A memory access flaw was found in the Linux kernel's XEN hypervisor for the virtual machine. This flaw allows a local user to crash the system or potentially escalate their privileges on the system.
(CVE-2022-36123)

An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879)

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

mm/mempolicy: fix uninit-value in mpol_rebind_policy() (CVE-2022-49567)

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

igmp: Fix data-races around sysctl_igmp_llm_reports. (CVE-2022-49590)

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

tcp: Fix a data-race around sysctl_tcp_probe_threshold. (CVE-2022-49595)

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

icmp: Fix data-races around sysctl. (CVE-2022-49638)

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

cgroup: Use separate src/dst nodes when preloading css_sets for migration (CVE-2022-49647)

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

usbnet: fix memory leak in error case (CVE-2022-49657)

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

mm/slub: add missing TID updates on slab deactivation (CVE-2022-49700)

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: 233382

File Name: al2_ALAS-2025-2790.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 3/27/2025

Updated: 3/27/2025

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: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2022-36123

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-livepatch-4.14.290-217.505, 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, cpe:/o:amazon:linux:2, 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: 3/7/2025

Vulnerability Publication Date: 7/21/2021

Reference Information

CVE: CVE-2021-33655, CVE-2022-36123, CVE-2022-36879, CVE-2022-49567, CVE-2022-49590, CVE-2022-49595, CVE-2022-49638, CVE-2022-49647, CVE-2022-49657, CVE-2022-49700

Detections

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