Detections
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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003546)
medium Nessus Plugin ID 286315
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-2026-003546 advisory.In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.
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?e88d1e8d
http://www.nessus.org/u?31af4c97
http://www.nessus.org/u?25dad453
http://www.nessus.org/u?a9ef1ed9
http://www.securityfocus.com/bid/108380
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743792
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748846
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14
http://www.nessus.org/u?9cda9a21
http://www.nessus.org/u?2cd74f29
http://www.nessus.org/u?5ed2f9aa
Plugin Details
Severity: Medium
ID: 286315
File Name: unity_linux_UTSA-2026-003546.nasl
Version: 1.2
Type: local
Published: 1/15/2026
Updated: 1/16/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.9
Temporal Score: 3.8
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2018-7191
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5
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:P/RL:O/RC:C
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/15/2026
Vulnerability Publication Date: 5/17/2019
Reference Information
CVE: CVE-2018-7191