What it is about

Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux Advanced Cluster Management ausnutzen, um Sicherheitsmaßnahmen zu umgehen und einen Denial-of-Service-Zustand zu verursachen.

Under what conditions?

The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.

What can happen in the worst case

An attacker could use the vulnerability to

• Sicherheitsmaßnahmen zu umgehen
• einen Denial-of-Service-Zustand zu verursachen

Am I affected?

Affected according to the BSI:

• Amazon Linux 2
• Red Hat Enterprise Linux
• Fedora Linux
• SUSE Linux
• IBM DB2 Big SQL
• Red Hat OpenShift Container Platform
• Red Hat Enterprise Linux Advanced Cluster Security for Kubernetes 4
• Red Hat OpenShift Data Foundation 4
• Red Hat Enterprise Linux Advanced Cluster Management <2.12.2
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9
• Red Hat OpenShift Container Platform <4.14.46

and 11 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 Enterprise Linux Advanced Cluster Management 2.12.2
• Red Hat OpenShift Container Platform 4.14.46
• Red Hat OpenShift Container Platform 4.14.48
• Red Hat OpenShift GitOps 1.14.3
• Red Hat OpenShift 5.9.14
• Red Hat OpenShift 5.8.20
• Red Hat OpenShift Data Foundation 4.17.7
• Red Hat OpenShift Data Foundation 4.14.18
• Red Hat OpenShift Container Platform 4.19.0
• Red Hat OpenShift Container Platform 4.15.58

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.