Detections
Analytics

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006805)

medium Nessus Plugin ID 305514

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-2026-006805 advisory.

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

 netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout

 While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released from the commit path.

 Mingi Cho originally reported this issue in a different path in 6.1.x with a pipapo set with low timeouts which is not possible upstream since 7395dfacfff6 (netfilter: nf_tables: use timestamp to check for set element timeout).

 Fix this by setting on the dead flag for anonymous sets to skip async gc in this case.

 According to 08e4c8c5919f (netfilter: nf_tables: mark newset as dead on transaction abort), Florian plans to accelerate abort path by releasing objects via workqueue, therefore, this sets on the dead flag for abort path too.

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?3178d943

https://nvd.nist.gov/vuln/detail/CVE-2024-26643

Plugin Details

Severity: Medium

ID: 305514

File Name: unity_linux_UTSA-2026-006805.nasl

Version: 1.1

Type: Local

Published: 4/8/2026

Updated: 4/8/2026

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-2024-26643

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: 4/8/2026

Vulnerability Publication Date: 3/21/2024

Reference Information

CVE: CVE-2024-26643