Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001223)

high Nessus Plugin ID 291017

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-2026-001223 advisory.

The Linux kernel 4.15 has a Buffer Overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user.

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?3c3474e6

http://www.nessus.org/u?f80a5583

http://www.nessus.org/u?2545f568

http://www.securityfocus.com/bid/103605

https://access.redhat.com/errata/RHSA-2018:2384

https://access.redhat.com/errata/RHSA-2018:2390

https://access.redhat.com/errata/RHSA-2018:2395

https://access.redhat.com/errata/RHSA-2018:2948

https://access.redhat.com/errata/RHSA-2019:1483

https://access.redhat.com/errata/RHSA-2019:1487

https://bugzilla.redhat.com/show_bug.cgi?id=1550142

http://www.nessus.org/u?7ffa0356

http://www.nessus.org/u?148b2157

https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html

https://security-tracker.debian.org/tracker/CVE-2018-7566

https://usn.ubuntu.com/3631-1/

https://usn.ubuntu.com/3631-2/

https://usn.ubuntu.com/3798-1/

https://usn.ubuntu.com/3798-2/

https://www.debian.org/security/2018/dsa-4187

https://www.debian.org/security/2018/dsa-4188

https://www.oracle.com/security-alerts/cpujul2020.html

http://www.nessus.org/u?9166970d

Plugin Details

Severity: High

ID: 291017

File Name: unity_linux_UTSA-2026-001223.nasl

Version: 1.1

Type: local

Published: 1/16/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2018-7566

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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: 2/14/2018

Reference Information

CVE: CVE-2018-7566