Unity Linux 20.1060a Security Update: kernel (UTSA-2026-003099)

medium Nessus Plugin ID 284849

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-2026-003099 advisory.

A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory.

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?e3ab9b95

http://www.securityfocus.com/bid/103459

https://access.redhat.com/errata/RHSA-2018:1318

https://access.redhat.com/errata/RHSA-2018:1355

https://access.redhat.com/errata/RHSA-2018:2948

https://access.redhat.com/errata/RHSA-2019:1170

https://access.redhat.com/errata/RHSA-2019:1190

https://access.redhat.com/errata/RHSA-2019:4159

https://bugzilla.redhat.com/show_bug.cgi?id=1552048

http://www.nessus.org/u?e2387324

http://www.nessus.org/u?999fdf92

https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html

https://marc.info/?l=linux-netdev&m=152023808817590&w=2

https://marc.info/?l=linux-netdev&m=152025888924151&w=2

https://security-tracker.debian.org/tracker/CVE-2018-1068

https://usn.ubuntu.com/3654-1/

https://usn.ubuntu.com/3654-2/

https://usn.ubuntu.com/3656-1/

https://usn.ubuntu.com/3674-1/

https://usn.ubuntu.com/3674-2/

https://usn.ubuntu.com/3677-1/

https://usn.ubuntu.com/3677-2/

https://www.debian.org/security/2018/dsa-4187

https://www.debian.org/security/2018/dsa-4188

Plugin Details

Severity: Medium

ID: 284849

File Name: unity_linux_UTSA-2026-003099.nasl

Version: 1.1

Type: local

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2018-1068

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/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/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 1/15/2026

Vulnerability Publication Date: 3/5/2018

Reference Information

CVE: CVE-2018-1068