Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002538)

high Nessus Plugin ID 287529

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-2026-002538 advisory.

It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.

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?10bb868c

http://www.securityfocus.com/bid/105119

http://www.securitytracker.com/id/1041529

https://access.redhat.com/errata/RHSA-2018:3083

https://access.redhat.com/errata/RHSA-2018:3096

https://access.redhat.com/errata/RHSA-2019:0415

https://access.redhat.com/errata/RHSA-2019:0641

https://access.redhat.com/errata/RHSA-2019:3217

https://access.redhat.com/errata/RHSA-2019:3967

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10902

http://www.nessus.org/u?2c51da07

https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html

https://security-tracker.debian.org/tracker/CVE-2018-10902

https://usn.ubuntu.com/3776-1/

https://usn.ubuntu.com/3776-2/

https://usn.ubuntu.com/3847-1/

https://usn.ubuntu.com/3847-2/

https://usn.ubuntu.com/3847-3/

https://usn.ubuntu.com/3849-1/

https://usn.ubuntu.com/3849-2/

https://www.debian.org/security/2018/dsa-4308

Plugin Details

Severity: High

ID: 287529

File Name: unity_linux_UTSA-2026-002538.nasl

Version: 1.2

Type: local

Published: 1/15/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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-2018-10902

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: 1/15/2026

Vulnerability Publication Date: 8/21/2018

Reference Information

CVE: CVE-2018-10902