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Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-992996)

medium Nessus Plugin ID 281244

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-2025-992996 advisory.

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

 staging: vt6655: fix some erroneous memory clean-up loops

 In some initialization functions of this driver, memory is allocated with 'i' acting as an index variable and increasing from 0. The commit in Fixes introduces some clean-up codes in case of allocation failure, which free memory in reverse order with 'i' decreasing to 0. However, there are some problems:
 - The case i=0 is left out. Thus memory is leaked.
 - In case memory allocation fails right from the start, the memory freeing loops will start with i=-1 and invalid memory locations will be accessed.

 One of these loops has been fixed in commit c8ff91535880 (staging:
 vt6655: fix potential memory leak). Fix the remaining erroneous loops.

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?da3a38ac

http://www.nessus.org/u?975add5f

https://nvd.nist.gov/vuln/detail/CVE-2022-50355

Plugin Details

Severity: Medium

ID: 281244

File Name: unity_linux_UTSA-2025-992996.nasl

Version: 1.1

Type: local

Published: 12/31/2025

Updated: 12/31/2025

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-2022-50355

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/31/2025

Vulnerability Publication Date: 9/4/2021

Reference Information

CVE: CVE-2022-50355