Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000996)

medium Nessus Plugin ID 291182

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-2026-000996 advisory.

The WRMSR processing functionality in the KVM subsystem in the Linux kernel through 3.17.2 does not properly handle the writing of a non-canonical address to a model-specific register, which allows guest OS users to cause a denial of service (host OS crash) by leveraging guest OS privileges, related to the wrmsr_interception function in arch/x86/kvm/svm.c and the handle_wrmsr function in arch/x86/kvm/vmx.c.

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?64aad086

http://www.nessus.org/u?f2014632

http://www.nessus.org/u?a205692b

http://www.nessus.org/u?f0ab19d3

http://rhn.redhat.com/errata/RHSA-2015-0869.html

http://www.debian.org/security/2014/dsa-3060

http://www.openwall.com/lists/oss-security/2014/10/24/9

http://www.securityfocus.com/bid/70742

http://www.ubuntu.com/usn/USN-2394-1

http://www.ubuntu.com/usn/USN-2417-1

http://www.ubuntu.com/usn/USN-2418-1

http://www.ubuntu.com/usn/USN-2491-1

https://bugzilla.redhat.com/show_bug.cgi?id=1144883

http://www.nessus.org/u?aed246d5

https://security-tracker.debian.org/tracker/CVE-2014-3610

Plugin Details

Severity: Medium

ID: 291182

File Name: unity_linux_UTSA-2026-000996.nasl

Version: 1.1

Type: local

Published: 1/16/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2014-3610

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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:P/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/14/2026

Vulnerability Publication Date: 10/24/2014

Reference Information

CVE: CVE-2014-3610