What it is about

Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle Red Hat Advanced Cluster Management und Multicluster engine for Kubernetes ausnutzen, um beliebigen Programmcode auszuführen oder einen Denial-of-Service-Zustand zu verursachen.

Under what conditions?

Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.

What can happen in the worst case

An attacker could use the vulnerability to

• beliebigen Programmcode auszuführen oder einen Denial-of-Service-Zustand zu verursachen

Am I affected?

Affected according to the BSI:

• Red Hat Enterprise Linux
• IBM QRadar SIEM
• Red Hat OpenShift Container Platform
• IBM DB2
• Red Hat Enterprise Linux Advanced Cluster Management for Kubernetes v2.16.1
• Red Hat Enterprise Linux Multicluster engine for Kubernetes v2.11.0
• Red Hat OpenShift Container Platform <4.17.54
• Red Hat OpenShift Container Platform release 4.21.17
• Red Hat OpenShift Container Platform <4.19.32
• Red Hat OpenShift Container Platform <4.16.63
• Red Hat OpenShift Pipelines <1.20.5
• Red Hat OpenShift Container Platform <4.18.43

and 1 more

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

• Red Hat OpenShift Container Platform 4.17.54
• Red Hat OpenShift Container Platform 4.19.32
• Red Hat OpenShift Container Platform 4.16.63
• Red Hat OpenShift Pipelines 1.20.5
• Red Hat OpenShift Container Platform 4.18.43
• Red Hat OpenShift Container Platform 4.20.24

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.