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Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987350)
medium Nessus Plugin ID 268384
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-2025-987350 advisory.In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data races in proc_douintvec_minmax().
A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing.
This patch changes proc_douintvec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_douintvec_minmax() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.
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?e4cf11c4
Plugin Details
Severity: Medium
ID: 268384
File Name: unity_linux_UTSA-2025-987350.nasl
Version: 1.2
Type: local
Published: 10/7/2025
Updated: 10/15/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Low
Base Score: 3.8
Temporal Score: 2.8
Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2022-49640
CVSS v3
Risk Factor: Medium
Base Score: 4.7
Temporal Score: 4.1
Vector: CVSS:3.0/AV:L/AC:H/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: 9/23/2025
Vulnerability Publication Date: 2/26/2025
Reference Information
CVE: CVE-2022-49640