Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004306)

medium Nessus Plugin ID 288742

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-2026-004306 advisory.

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.

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?62ee1214

http://www.nessus.org/u?fd251213

http://www.nessus.org/u?bdd9a056

http://www.openwall.com/lists/oss-security/2021/01/19/6

http://www.nessus.org/u?dfe2fe95

http://www.nessus.org/u?a28d379b

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html

https://security-tracker.debian.org/tracker/CVE-2020-27673

https://security.gentoo.org/glsa/202011-06

https://xenbits.xen.org/xsa/advisory-332.html

Plugin Details

Severity: Medium

ID: 288742

File Name: unity_linux_UTSA-2026-004306.nasl

Version: 1.2

Type: local

Published: 1/16/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2020-27673

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/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 Ease: No known exploits are available

Patch Publication Date: 1/16/2026

Vulnerability Publication Date: 10/22/2020

Reference Information

CVE: CVE-2020-27673