RHCOS 4 : OpenShift Container Platform 4.7.9 (RHSA-2021:1366)

medium Nessus Plugin ID 312434

Synopsis

The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.7.9.

Description

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1366 advisory.

- golang: data race in certain net/http servers including ReverseProxy can lead to DoS (CVE-2020-15586)

- golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs (CVE-2020-16845)

- golang: math/big: panic during recursive division of very large numbers (CVE-2020-28362)

- golang: crypto/elliptic: incorrect operations on the P-224 curve (CVE-2021-3114)

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 4.7.9 packages based on the guidance in RHSA-2021:1366.

See Also

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

https://bugzilla.redhat.com/show_bug.cgi?id=1856953

https://bugzilla.redhat.com/show_bug.cgi?id=1867099

https://bugzilla.redhat.com/show_bug.cgi?id=1897635

https://bugzilla.redhat.com/show_bug.cgi?id=1918750

https://bugzilla.redhat.com/show_bug.cgi?id=1953464

http://www.nessus.org/u?3b966ea5

https://access.redhat.com/errata/RHSA-2021:1366

Plugin Details

Severity: Medium

ID: 312434

File Name: rhcos-RHSA-2021-1366.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: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2021-3114

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:golang-github-prometheus-promu, p-cpe:/a:redhat:enterprise_linux:prometheus-promu, cpe:/o:redhat:enterprise_linux:8: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: 5/4/2021

Vulnerability Publication Date: 7/17/2020

Reference Information

CVE: CVE-2020-15586, CVE-2020-16845, CVE-2020-28362, CVE-2021-3114

CWE: 295, 362, 682, 835

RHSA: 2021:1366