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Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013333)

medium Nessus Plugin ID 307973

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-2026-013333 advisory.

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

 serial: 8250: Fix oops for port->pm on uart_change_pm()

 Unloading a hardware specific 8250 driver can produce error Unable to handle kernel paging request at virtual address about ten seconds after unloading the driver. This happens on uart_hangup() calling uart_change_pm().

 Turns out commit 04e82793f068 (serial: 8250: Reinit port->pm on port specific driver unbind) was only a partial fix. If the hardware specific driver has initialized port->pm function, we need to clear port->pm too.
 Just reinitializing port->ops does not do this. Otherwise serial8250_pm() will call port->pm() instead of serial8250_do_pm().

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?355235ed

http://www.nessus.org/u?0313f14b

https://nvd.nist.gov/vuln/detail/CVE-2023-54220

Plugin Details

Severity: Medium

ID: 307973

File Name: unity_linux_UTSA-2026-013333.nasl

Version: 1.1

Type: Local

Published: 4/21/2026

Updated: 4/21/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2023-54220

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/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/21/2026

Vulnerability Publication Date: 9/7/2023

Reference Information

CVE: CVE-2023-54220