Unity Linux 20.1060e Security Update: kernel (UTSA-2026-004262)

medium Nessus Plugin ID 288837

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-2026-004262 advisory.

Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

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?6dbdb39e

http://www.nessus.org/u?7362868e

http://www.nessus.org/u?8819de7e

http://www.nessus.org/u?9097df66

http://www.openwall.com/lists/oss-security/2020/07/14/5

https://cert-portal.siemens.com/productcert/pdf/ssa-534763.pdf

https://kc.mcafee.com/corporate/index?page=content&id=SB10318

http://www.nessus.org/u?842cd5c5

http://www.nessus.org/u?ef588ff4

http://www.nessus.org/u?b75b754f

http://www.nessus.org/u?e7e44b26

https://security-tracker.debian.org/tracker/CVE-2020-0543

https://usn.ubuntu.com/4385-1/

https://usn.ubuntu.com/4387-1/

https://usn.ubuntu.com/4388-1/

https://usn.ubuntu.com/4389-1/

https://usn.ubuntu.com/4390-1/

https://usn.ubuntu.com/4391-1/

https://usn.ubuntu.com/4392-1/

https://usn.ubuntu.com/4393-1/

http://www.nessus.org/u?c444b53b

Plugin Details

Severity: Medium

ID: 288837

File Name: unity_linux_UTSA-2026-004262.nasl

Version: 1.1

Type: local

Published: 1/16/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2020-0543

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:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/16/2026

Vulnerability Publication Date: 6/9/2020

Reference Information

CVE: CVE-2020-0543