Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002220)

medium Nessus Plugin ID 284896

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-2026-002220 advisory.

The smbhash function in fs/cifs/smbencrypt.c in the Linux kernel 4.9.x before 4.9.1 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a scatterlist.

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?8e470878

http://www.nessus.org/u?e8211e60

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.1

http://www.openwall.com/lists/oss-security/2017/01/21/3

http://www.securityfocus.com/bid/95714

https://bugzilla.redhat.com/show_bug.cgi?id=1416104

http://www.nessus.org/u?53ca5952

https://security-tracker.debian.org/tracker/CVE-2016-10154

Plugin Details

Severity: Medium

ID: 284896

File Name: unity_linux_UTSA-2026-002220.nasl

Version: 1.1

Type: local

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2016-10154

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: 1/23/2017

Reference Information

CVE: CVE-2016-10154