RHCOS 4 : OpenShift Container Platform 4.5 (RHSA-2020:2413)

high Nessus Plugin ID 312486

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Synopsis

The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.5.

Description

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2413 advisory.

- kubernetes: credential leak in kube-controller-manager via error messages in mount failure logs and events for AzureFile and CephFS volumes (CVE-2019-11252)

- kubernetes: Denial of service in API server via crafted YAML payloads by authorized users (CVE-2019-11254)

- kubernetes: node localhost services reachable via martian packets (CVE-2020-8558)

- proglottis/gpgme: Use-after-free in GPGME bindings during container image pull (CVE-2020-8945)

- golang.org/x/crypto: Processing of crafted ssh-ed25519 public keys allows for panic (CVE-2020-9283)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHCOS OpenShift Container Platform 4.5 package based on the guidance in RHSA-2020:2413.

Plugin Details

Severity: High

ID: 312486

File Name: rhcos-RHSA-2020-2413.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: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

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

CVSS Score Source: CVE-2020-8558

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:machine-config-daemon, p-cpe:/a:redhat:enterprise_linux:openshift-hyperkube, 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: 7/13/2020

Vulnerability Publication Date: 2/12/2020

Reference Information

CVE: CVE-2019-11252, CVE-2019-11254, CVE-2020-8558, CVE-2020-8945, CVE-2020-9283

CWE: 130, 209, 300, 400, 416

RHSA: 2020:2413

Detections

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