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Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-387934)

medium Nessus Plugin ID 267123

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-2025-387934 advisory.

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

 net: ena: Fix incorrect descriptor free behavior

 ENA has two types of TX queues:
 - queues which only process TX packets arriving from the network stack
 - queues which only process TX packets forwarded to it by XDP_REDIRECT or XDP_TX instructions

 The ena_free_tx_bufs() cycles through all descriptors in a TX queue and unmaps + frees every descriptor that hasn't been acknowledged yet by the device (uncompleted TX transactions).
 The function assumes that the processed TX queue is necessarily from the first category listed above and ends up using napi_consume_skb() for descriptors belonging to an XDP specific queue.

 This patch solves a bug in which, in case of a VF reset, the descriptors aren't freed correctly, leading to crashes.

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?614bd892

http://www.nessus.org/u?7734bd08

https://nvd.nist.gov/vuln/detail/CVE-2024-35958

Plugin Details

Severity: Medium

ID: 267123

File Name: unity_linux_UTSA-2025-387934.nasl

Version: 1.2

Type: local

Published: 10/7/2025

Updated: 10/15/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2024-35958

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: 7/8/2025

Vulnerability Publication Date: 4/9/2024

Reference Information

CVE: CVE-2024-35958