Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003051)

medium Nessus Plugin ID 287739

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-2026-003051 advisory.

The tcp_disconnect function in net/ipv4/tcp.c in the Linux kernel before 4.12 allows local users to cause a denial of service (__tcp_select_window divide-by-zero error and system crash) by triggering a disconnect within a certain tcp_recvmsg code path.

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?eb6d89f1

http://www.nessus.org/u?0099932a

http://www.nessus.org/u?de58c590

http://www.debian.org/security/2017/dsa-3981

http://www.securityfocus.com/bid/100878

http://www.securitytracker.com/id/1039549

https://access.redhat.com/errata/RHSA-2017:2918

https://access.redhat.com/errata/RHSA-2017:2930

https://access.redhat.com/errata/RHSA-2017:2931

https://access.redhat.com/errata/RHSA-2017:3200

https://access.redhat.com/errata/RHSA-2018:2172

http://www.nessus.org/u?52e8c861

https://security-tracker.debian.org/tracker/CVE-2017-14106

http://www.nessus.org/u?ebd518c1

Plugin Details

Severity: Medium

ID: 287739

File Name: unity_linux_UTSA-2026-003051.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-2017-14106

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/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: 9/1/2017

Reference Information

CVE: CVE-2017-14106