Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: httpd (UTSA-2026-022133)

high Nessus Plugin ID 380968

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-2026-022133 advisory.

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow

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 httpd package.

See Also

https://access.redhat.com/security/cve/CVE-2020-35452

https://nvd.nist.gov/vuln/detail/CVE-2020-35452

http://www.nessus.org/u?30cc793a

Plugin Details

Severity: High

ID: 380968

File Name: unity_linux_UTSA-2026-022133.nasl

Version: 1.1

Type: Local

Published: 11/14/2026

Updated: 11/14/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.8

Percentile: 22.57

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2020-35452

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

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

Temporal Vector: CVSS:3.0/E:U/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 Ease: No known exploits are available

Patch Publication Date: 5/28/2026

Vulnerability Publication Date: 6/1/2021

Reference Information

CVE: CVE-2020-35452