CVE-2020-14336

mediumpriority · track · 26EPSS 0.009 · 60 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.93% (60th) EPSS

CVSS 4 · medium

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · redhat_csaf

EPSS · scored 2026-10-27

A flaw was found in the Restricted Security Context Constraints (SCC), where it allows pods to craft custom network packets. This flaw allows an attacker to cause a denial of service attack on an OpenShift Container Platform cluster if they can deploy pods. The highest threat from this vulnerability is to system availability.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedopenshift4/ose-machine-config-operator@sha256:0d08b01798a96cb124e07a40e6953ad220bc2055f926e27517c2fe202beae812_ppc64le as a component of Red Hat OpenShift Container Platform 4.5redhat_csaf
For OpenShift Container Platform 4.5 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.5/release_notes/ocp-4-5-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.5/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHSA-2020:4320
Fixedopenshift4/ose-machine-config-operator@sha256:2ac7d8e5a4a1a8a0cbb06ac6302a146b256e413f54d62dca553c11e1dcc0661d_amd64 as a component of Red Hat OpenShift Container Platform 4.5redhat_csaf
For OpenShift Container Platform 4.5 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.5/release_notes/ocp-4-5-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.5/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHSA-2020:4320
Fixedopenshift4/ose-machine-config-operator@sha256:56347b9b9aa202c3ea4ee5fc6c6d4e78bb5aa20d3cc358ef41c5640c45d7538f_s390x as a component of Red Hat OpenShift Container Platform 4.5redhat_csaf
For OpenShift Container Platform 4.5 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.5/release_notes/ocp-4-5-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.5/updating/updating-cluster-cli.html.
https://access.redhat.com/errata/RHSA-2020:4320
Workaroundopenshift4/ose-machine-config-operator@sha256:0d08b01798a96cb124e07a40e6953ad220bc2055f926e27517c2fe202beae812_ppc64le as a component of Red Hat OpenShift Container Platform 4.5redhat_csaf
On OCP 3.11 create a custom SCC based on 'restricted' and also drop the NET_RAW capability[1]. Assign this custom SCC to any users, or groups which create pods you want to protect. See the documentation for more information [2]. [1] https://access.redhat.com/solutions/5611521 [2] https://docs.openshift.com/container-platform/3.11/admin_guide/manage_scc.html
Workaroundopenshift4/ose-machine-config-operator@sha256:2ac7d8e5a4a1a8a0cbb06ac6302a146b256e413f54d62dca553c11e1dcc0661d_amd64 as a component of Red Hat OpenShift Container Platform 4.5redhat_csaf
On OCP 3.11 create a custom SCC based on 'restricted' and also drop the NET_RAW capability[1]. Assign this custom SCC to any users, or groups which create pods you want to protect. See the documentation for more information [2]. [1] https://access.redhat.com/solutions/5611521 [2] https://docs.openshift.com/container-platform/3.11/admin_guide/manage_scc.html
Workaroundopenshift4/ose-machine-config-operator@sha256:56347b9b9aa202c3ea4ee5fc6c6d4e78bb5aa20d3cc358ef41c5640c45d7538f_s390x as a component of Red Hat OpenShift Container Platform 4.5redhat_csaf
On OCP 3.11 create a custom SCC based on 'restricted' and also drop the NET_RAW capability[1]. Assign this custom SCC to any users, or groups which create pods you want to protect. See the documentation for more information [2]. [1] https://access.redhat.com/solutions/5611521 [2] https://docs.openshift.com/container-platform/3.11/admin_guide/manage_scc.html

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.1–6.5

v2.04mediumAV:N/AC:L/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.13.1lowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Lsecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USCWE-770US

affected products (7)

Products and version ranges known to be affected.

n/a OpenShift≤ Red Hat OpenShift Container Platform 4.6 and Red Hat OpenShift Container Platform 4.5.16enisa_euvdEU
redhat openshift container platform= 3.11nvdUScpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
redhat openshift container platform= 4.5.16nvdUScpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
redhat openshift container platform= 4.6nvdUScpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
openshift4/ose-machine-config-operator@sha256:0d08b01798a96cb124e07a40e6953ad220bc2055f926e27517c2fe202beae812_ppc64le as a component of Red Hat OpenShift Container Platform 4.5all versionsfixedredhat_csafUS
openshift4/ose-machine-config-operator@sha256:2ac7d8e5a4a1a8a0cbb06ac6302a146b256e413f54d62dca553c11e1dcc0661d_amd64 as a component of Red Hat OpenShift Container Platform 4.5all versionsfixedredhat_csafUS
openshift4/ose-machine-config-operator@sha256:56347b9b9aa202c3ea4ee5fc6c6d4e78bb5aa20d3cc358ef41c5640c45d7538f_s390x as a component of Red Hat OpenShift Container Platform 4.5all versionsfixedredhat_csafUS

advisories (1)

Vendor and ecosystem advisories describing this.

RHSA-2020:4320Red Hat Security Advisory: OpenShift Container Platform 4.5.16 security update2020-10-26csaf · redhat_csafUS
Red Hat OpenShift Container Platform release 4.5.16 is now available with updates to packages and images that fix several bugs and add enhancements. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd redhat_csaf NVD CVE.org MITRE

published 2021-06-02modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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