Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000244)

medium Nessus Plugin ID 282036

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-2026-000244 advisory.

In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.

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?618acd32

https://nvd.nist.gov/vuln/detail/CVE-2019-9213

http://www.nessus.org/u?2287e93e

Plugin Details

Severity: Medium

ID: 282036

File Name: unity_linux_UTSA-2026-000244.nasl

Version: 1.1

Type: local

Published: 1/7/2026

Updated: 1/7/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4

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

CVSS Score Source: CVE-2019-9213

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5.1

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:F/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/7/2026

Vulnerability Publication Date: 3/5/2019

Reference Information

CVE: CVE-2019-9213