Detections
Analytics

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986295)

medium Nessus Plugin ID 268119

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-2025-986295 advisory.

 In the Linux kernel, the following vulnerability has been resolved:

 ALSA: timer: Set lower bound of start tick time

 Currently ALSA timer doesn't have the lower limit of the start tick time, and it allows a very small size, e.g. 1 tick with 1ns resolution for hrtimer. Such a situation may lead to an unexpected RCU stall, where the callback repeatedly queuing the expire update, as reported by fuzzer.

 This patch introduces a sanity check of the timer start tick time, so that the system returns an error when a too small start size is set.
 As of this patch, the lower limit is hard-coded to 100us, which is small enough but can still work somehow.

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?970f5521

http://www.nessus.org/u?7847844d

https://nvd.nist.gov/vuln/detail/CVE-2024-38618

Plugin Details

Severity: Medium

ID: 268119

File Name: unity_linux_UTSA-2025-986295.nasl

Version: 1.1

Type: local

Published: 10/7/2025

Updated: 10/7/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2024-38618

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/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 9/22/2025

Vulnerability Publication Date: 6/19/2024

Reference Information

CVE: CVE-2024-38618