Alibaba Cloud Linux 3 : 0017: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0017)

high Nessus Plugin ID 236017

Synopsis

The remote Alibaba Cloud Linux host is missing one or more security updates.

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2023:0017 advisory.

Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

CVE-2022-4696:
There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling io_splice on specific files will call the get_uts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 236017

File Name: alinux3_sa_2023-0017.nasl

Version: 1.1

Type: local

Family: Alibaba Cloud Linux Local Security Checks

Published: 5/14/2025

Updated: 5/14/2025

Supported Sensors: 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-2022-4696

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:alibabacloud:alibaba_cloud_linux_3:kernel-debug-core, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-tools, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debug-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-modules-extra, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:bpftool, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perf-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-tools-libs, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debug-modules, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debuginfo-common-aarch64, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-headers, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debug-modules-internal, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debuginfo-common-x86_64, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:bpftool-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-perf, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debug-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-tools-libs-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debug, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-debug-modules-extra, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:perf, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-tools-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-modules, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-core, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:kernel-modules-internal, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:python3-perf-debuginfo

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/6/2023

Vulnerability Publication Date: 1/11/2023

Reference Information

CVE: CVE-2022-4696

Detections

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