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Unity Linux 20.1060e / 20.1070e Security Update: samba (UTSA-2026-017434)

medium Nessus Plugin ID 314051

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-2026-017434 advisory.

 A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.

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 samba package.

See Also

http://www.nessus.org/u?5f4b74fb

https://nvd.nist.gov/vuln/detail/CVE-2021-3671

http://www.nessus.org/u?615b5ec6

Plugin Details

Severity: Medium

ID: 314051

File Name: unity_linux_UTSA-2026-017434.nasl

Version: 1.1

Type: Local

Published: 5/11/2026

Updated: 5/11/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS Score Source: CVE-2021-3671

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/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: 5/11/2026

Vulnerability Publication Date: 10/12/2021

Reference Information

CVE: CVE-2021-3671