Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004153)

high Nessus Plugin ID 288590

Synopsis

The Unity Linux host is missing one or more security updates.

Description

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004153 advisory.

A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.

Tenable has extracted the preceding description block directly from the Unity 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 kernel package.

See Also

http://www.nessus.org/u?d14bf6d0

http://www.nessus.org/u?3df8e060

http://www.nessus.org/u?d5299d44

https://bugzilla.kernel.org/show_bug.cgi?id=208003

https://bugzilla.redhat.com/show_bug.cgi?id=1868453

https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html

https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html

https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html

http://www.nessus.org/u?adfc65cd

https://security-tracker.debian.org/tracker/CVE-2020-14356

https://security.netapp.com/advisory/ntap-20200904-0002/

https://usn.ubuntu.com/4483-1/

https://usn.ubuntu.com/4484-1/

https://usn.ubuntu.com/4526-1/

Plugin Details

Severity: High

ID: 288590

File Name: unity_linux_UTSA-2026-004153.nasl

Version: 1.2

Type: local

Published: 1/16/2026

Updated: 1/17/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2020-14356

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/16/2026

Vulnerability Publication Date: 8/18/2020

Reference Information

CVE: CVE-2020-14356