Detections
Analytics
Unity Linux 20.1060e / 20.1070e Security Update: c-ares (UTSA-2026-017414)
medium Nessus Plugin ID 313982
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-2026-017414 advisory.A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.
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 c-ares package.See Also
http://www.nessus.org/u?d0020ba1
Plugin Details
Severity: Medium
ID: 313982
File Name: unity_linux_UTSA-2026-017414.nasl
Version: 1.1
Type: Local
Published: 5/11/2026
Updated: 5/11/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.2
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2021-3672
CVSS v3
Risk Factor: Medium
Base Score: 5.6
Temporal Score: 5.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Temporal Vector: CVSS:3.0/E:P/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 Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 5/11/2026
Vulnerability Publication Date: 8/26/2021
Reference Information
CVE: CVE-2021-3672