RHCOS 3 : OpenShift Container Platform 3.11.404 (RHSA-2021:0833)

high Nessus Plugin ID 312532

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Synopsis

The remote Red Hat CoreOS host is missing a security update for OpenShift Container Platform 3.11.404.

Description

The remote Red Hat Enterprise Linux CoreOS 3 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2021:0833 advisory.

- golang-github-gorilla-websocket: integer overflow leads to denial of service (CVE-2020-27813)

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 RHCOS OpenShift Container Platform 3.11.404 package based on the guidance in RHSA-2021:0833.

Plugin Details

Severity: High

ID: 312532

File Name: rhcos-RHSA-2021-0833.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/6/2026

Updated: 5/6/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-27813

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:atomic-openshift-cluster-autoscaler, cpe:/o:redhat:enterprise_linux:7:coreos

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 3/25/2021

Vulnerability Publication Date: 12/2/2020

Reference Information

CVE: CVE-2020-27813

CWE: 400

RHSA: 2021:0833

Detections

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