RHCOS 4 : OpenShift Container Platform 4.4.33 (RHSA-2021:0282)

medium Nessus Plugin ID 312535

Synopsis

The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.4.33.

Description

The remote Red Hat Enterprise Linux CoreOS 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:0282 advisory.

- jenkins-2-plugins/subversion: XML parser is not preventing XML external entity (XXE) attacks (CVE-2020-2304)

- jenkins-2-plugins/mercurial: XML parser is not preventing XML external entity (XXE) attacks (CVE-2020-2305)

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 4.4.33 packages based on the guidance in RHSA-2021:0282.

See Also

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=1895939

https://bugzilla.redhat.com/show_bug.cgi?id=1895940

https://bugzilla.redhat.com/show_bug.cgi?id=1921164

http://www.nessus.org/u?52b93f3b

https://access.redhat.com/errata/RHSA-2021:0282

Plugin Details

Severity: Medium

ID: 312535

File Name: rhcos-RHSA-2021-0282.nasl

Version: 1.1

Type: Local

Agent: unix

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: Important

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2020-2305

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:jenkins-2-plugins, 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: 2/3/2021

Vulnerability Publication Date: 11/4/2020

Reference Information

CVE: CVE-2020-2304, CVE-2020-2305

CWE: 611

RHSA: 2021:0282