RHCOS 4 : OpenShift Container Platform 4.1.20 openshift (RHSA-2019:3132)

high Nessus Plugin ID 312526

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Synopsis

The remote Red Hat CoreOS host is missing a security update for OpenShift Container Platform 4.1.20 openshift.

Description

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:3132 advisory.

- kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service (CVE-2019-11253)

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 4.1.20 openshift package based on the guidance in RHSA-2019:3132.

Plugin Details

Severity: High

ID: 312526

File Name: rhcos-RHSA-2019-3132.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: Medium

Score: 4.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2019-11253

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openshift, p-cpe:/a:redhat:enterprise_linux:openshift-clients, p-cpe:/a:redhat:enterprise_linux:openshift-hyperkube, p-cpe:/a:redhat:enterprise_linux:openshift-clients-redistributable, cpe:/o:redhat:enterprise_linux:8:coreos, cpe:/o:redhat:enterprise_linux:7:coreos

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/16/2019

Vulnerability Publication Date: 9/27/2019

Reference Information

CVE: CVE-2019-11253

CWE: 400

RHSA: 2019:3132

Detections

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