CVE-2020-14336 Denial of service in Openshift
An attacker with pod deployment privileges can craft custom network packets to cause a denial of service on the OpenShift cluster.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-14336?
CVE-2020-14336 is a medium-severity denial of service vulnerability in Redhat Openshift Container Platform, published on 2 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-770
Which versions are affected by CVE-2020-14336?
It affects 1 product.
Products include Redhat Openshift Container Platform.
How do I fix CVE-2020-14336?
No fix has been published for CVE-2020-14336 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-14336 being exploited?
There is no known exploitation of CVE-2020-14336 in the wild and no public exploit code.
Other vulnerabilities in Redhat Openshift Container Platform
- CVE-2020-27836 Missing authorization in cluster-ingress-operator
- CVE-2018-1085 Misconfiguration in openshift-ansible
- CVE-2026-54099 Privilege escalation in Red Hat OpenShift Container Platform 4
- CVE-2026-1784 Ose-cluster-ingress-operator: remote code execution through haproxy configuration injection
- CVE-2021-20182 Privilege escalation in openshift
Sources
Also known as GHSA-qr9q-882c-gv4j.