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Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013334)

medium Nessus Plugin ID 307914

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-2026-013334 advisory.

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

 genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()

 If ipi_send_{mask|single}() is called with an invalid interrupt number, all the local variables there will be NULL. ipi_send_verify() which is invoked from these functions does verify its 'data' parameter, resulting in a kernel oops in irq_data_get_affinity_mask() as the passed NULL pointer gets dereferenced.

 Add a missing NULL pointer check in ipi_send_verify()...

 Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

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?4c39273b

http://www.nessus.org/u?a9cb6523

https://nvd.nist.gov/vuln/detail/CVE-2023-53332

Plugin Details

Severity: Medium

ID: 307914

File Name: unity_linux_UTSA-2026-013334.nasl

Version: 1.1

Type: Local

Published: 4/21/2026

Updated: 4/21/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2023-53332

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: 3/22/2023

Reference Information

CVE: CVE-2023-53332