Detections
Analytics

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414333)

high Nessus Plugin ID 266899

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-2025-414333 advisory.

 A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit56b88b50565cd8b946a2d00b0c83927b7ebb055e

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.

See Also

http://www.nessus.org/u?0d5e3952

https://nvd.nist.gov/vuln/detail/CVE-2023-0266

Plugin Details

Severity: High

ID: 266899

File Name: unity_linux_UTSA-2025-414333.nasl

Version: 1.1

Type: local

Published: 10/7/2025

Updated: 10/7/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 5

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

CVSS Score Source: CVE-2023-0266

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:F/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/8/2025

Vulnerability Publication Date: 1/30/2023

CISA Known Exploited Vulnerability Due Dates: 4/20/2023

Reference Information

CVE: CVE-2023-0266