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Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987696)

medium Nessus Plugin ID 271040

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-2025-987696 advisory.

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

 net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path

 syzbot reported that act_len in kalmia_send_init_packet() is uninitialized when passing it to the first usb_bulk_msg error path. Jiri Pirko noted that it's pointless to pass it in the error path, and that the value that would be printed in the second error path would be the value of act_len from the first call to usb_bulk_msg.[1]

 With this in mind, let's just not pass act_len to the usb_bulk_msg error paths.

 1: https://lore.kernel.org/lkml/Y9pY61y1nwTuzMOa@nanopsycho/

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?28025c1f

http://www.nessus.org/u?d94e46fc

https://nvd.nist.gov/vuln/detail/CVE-2023-52703

Plugin Details

Severity: Medium

ID: 271040

File Name: unity_linux_UTSA-2025-987696.nasl

Version: 1.1

Type: local

Published: 10/21/2025

Updated: 10/21/2025

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-2023-52703

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: 10/15/2025

Vulnerability Publication Date: 9/4/2021

Reference Information

CVE: CVE-2023-52703