Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002793)

medium Nessus Plugin ID 284938

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-2026-002793 advisory.

arch/x86/kvm/emulate.c in the Linux kernel before 4.8.12 does not properly initialize Code Segment (CS) in certain error cases, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.

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?7807ed9d

http://www.nessus.org/u?a6b68dcc

http://www.nessus.org/u?6b7b5584

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12

http://www.openwall.com/lists/oss-security/2016/12/01/1

http://www.securityfocus.com/bid/94615

https://bugzilla.redhat.com/show_bug.cgi?id=1400468

http://www.nessus.org/u?95ac9a08

https://security-tracker.debian.org/tracker/CVE-2016-9756

Plugin Details

Severity: Medium

ID: 284938

File Name: unity_linux_UTSA-2026-002793.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: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2016-9756

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:H/I:N/A:N

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: 12/1/2016

Reference Information

CVE: CVE-2016-9756