Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001023)

medium Nessus Plugin ID 283846

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-2026-001023 advisory.

The signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service (TM Bad Thing exception and panic) 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://rhn.redhat.com/errata/RHSA-2016-2584.html

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5

http://www.openwall.com/lists/oss-security/2016/04/13/1

http://www.securitytracker.com/id/1035594

https://bugzilla.redhat.com/show_bug.cgi?id=1326540

http://www.nessus.org/u?8314a533

https://security-tracker.debian.org/tracker/CVE-2015-8844

http://www.nessus.org/u?26d231cd

http://www.nessus.org/u?357a1e40

http://rhn.redhat.com/errata/RHSA-2016-2574.html

Plugin Details

Severity: Medium

ID: 283846

File Name: unity_linux_UTSA-2026-001023.nasl

Version: 1.2

Type: local

Published: 1/14/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.5

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

CVSS Score Source: CVE-2015-8844

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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: 1/14/2026

Vulnerability Publication Date: 4/27/2016

Reference Information

CVE: CVE-2015-8844