Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003501)

high Nessus Plugin ID 286311

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-2026-003501 advisory.

An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.

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?0b9976e1

http://www.nessus.org/u?00315267

http://www.nessus.org/u?e9f5a89f

http://www.nessus.org/u?8cf4f176

http://www.nessus.org/u?70bd9b7a

https://access.redhat.com/errata/RHSA-2020:0178

https://access.redhat.com/errata/RHSA-2020:0543

https://access.redhat.com/errata/RHSA-2020:0592

https://access.redhat.com/errata/RHSA-2020:0609

https://access.redhat.com/errata/RHSA-2020:0661

http://www.nessus.org/u?749ec0d1

https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html

https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html

https://seclists.org/bugtraq/2019/Nov/11

https://security-tracker.debian.org/tracker/CVE-2018-20976

https://security.netapp.com/advisory/ntap-20190905-0002/

http://www.nessus.org/u?9ec169e3

https://usn.ubuntu.com/4144-1/

https://usn.ubuntu.com/4145-1/

Plugin Details

Severity: High

ID: 286311

File Name: unity_linux_UTSA-2026-003501.nasl

Version: 1.2

Type: local

Published: 1/15/2026

Updated: 1/16/2026

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:N/C:P/I:P/A:P

CVSS Score Source: CVE-2018-20976

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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: 1/15/2026

Vulnerability Publication Date: 8/19/2019

Reference Information

CVE: CVE-2018-20976