Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002562)

medium Nessus Plugin ID 284851

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-2026-002562 advisory.

The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.

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?273770ea

http://www.nessus.org/u?a0ac6734

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11

http://www.securityfocus.com/bid/101678

https://access.redhat.com/errata/RHSA-2018:0151

https://bugzilla.redhat.com/show_bug.cgi?id=1501215

http://www.nessus.org/u?02dca9f5

https://security-tracker.debian.org/tracker/CVE-2017-12193

https://usn.ubuntu.com/3698-1/

https://usn.ubuntu.com/3698-2/

Plugin Details

Severity: Medium

ID: 284851

File Name: unity_linux_UTSA-2026-002562.nasl

Version: 1.2

Type: local

Published: 1/15/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2017-12193

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: 1/15/2026

Vulnerability Publication Date: 11/2/2017

Reference Information

CVE: CVE-2017-12193