RHCOS 4 : OpenShift Container Platform 4.8.13 (RHSA-2021:3631)

high Nessus Plugin ID 312416

Language:

Synopsis

The remote Red Hat CoreOS host is missing a security update for OpenShift Container Platform 4.8.13.

Description

The remote Red Hat Enterprise Linux CoreOS 4 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2021:3631 advisory.

- kubernetes: Symlink exchange can allow host filesystem access (CVE-2021-25741)

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 4.8.13 package based on the guidance in RHSA-2021:3631.

Plugin Details

Severity: High

ID: 312416

File Name: rhcos-RHSA-2021-3631.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: 6.0

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2021-25741

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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-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: 9/28/2021

Vulnerability Publication Date: 9/20/2021

Reference Information

CVE: CVE-2021-25741

CWE: 59

RHSA: 2021:3631

Detections

Analytics