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Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986991)

medium Nessus Plugin ID 268089

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-2025-986991 advisory.

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

 net: remove two BUG() from skb_checksum_help()

 I have a syzbot report that managed to get a crash in skb_checksum_help()

 If syzbot can trigger these BUG(), it makes sense to replace them with more friendly WARN_ON_ONCE() since skb_checksum_help() can instead return an error code.

 Note that syzbot will still crash there, until real bug is fixed.

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.

See Also

http://www.nessus.org/u?7ec1ea2c

http://www.nessus.org/u?093b36aa

https://nvd.nist.gov/vuln/detail/CVE-2022-49497

Plugin Details

Severity: Medium

ID: 268089

File Name: unity_linux_UTSA-2025-986991.nasl

Version: 1.1

Type: local

Published: 10/7/2025

Updated: 10/7/2025

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-2022-49497

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: 9/23/2025

Vulnerability Publication Date: 7/15/2022

Reference Information

CVE: CVE-2022-49497