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Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-422803)

medium Nessus Plugin ID 267349

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-2025-422803 advisory.

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

 net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()

 bcm_sf2_mdio_register() calls of_phy_find_device() and then phy_device_remove() in a loop to remove existing PHY devices.
 of_phy_find_device() eventually calls bus_find_device(), which calls get_device() on the returned struct device * to increment the refcount.
 The current implementation does not decrement the refcount, which causes memory leak.

 This commit adds the missing phy_device_free() call to decrement the refcount via put_device() to balance the refcount.

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?cdbfddf1

https://nvd.nist.gov/vuln/detail/CVE-2024-44971

Plugin Details

Severity: Medium

ID: 267349

File Name: unity_linux_UTSA-2025-422803.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: 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-2024-44971

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: 7/8/2025

Vulnerability Publication Date: 9/4/2024

Reference Information

CVE: CVE-2024-44971