Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: php (UTSA-2026-143722)

medium Nessus Plugin ID 371643

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-2026-143722 advisory.

PHP's OpenSSL stream peer verification checks the certificate's subjectAltName entries first and, whenever no entry matches, falls back to the Common Name. RFC 6125 requires the CN to be ignored once the certificate presents any service identity, so a certificate carrying a non-matching DNS SAN was still accepted when its CN matched the requested peer_name. A certificate trusted by the client for one name can therefore be used to impersonate another.

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 php package.

Plugin Details

Severity: Medium

ID: 371643

File Name: unity_linux_UTSA-2026-143722.nasl

Version: 1.1

Type: Local

Family: Unity Linux Local Security Checks

Published: 10/24/2026

Updated: 10/24/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-91769

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.9

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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: 10/23/2026

Vulnerability Publication Date: 9/22/2026

Reference Information

CVE: CVE-2026-91769

Detections

Analytics