What it is about

Die Java Platform, Standard Edition (SE) ist eine Sammlung von Java-APIs (JDK) und der Java Laufzeit Umgebung (JRE). Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Java SE und anderen Java Editionen ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Under what conditions?

Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.

What can happen in the worst case

An attacker could use the vulnerability to

• die Vertraulichkeit
• Integrität
• Verfügbarkeit zu gefährden

Am I affected?

Affected according to the BSI:

• Debian Linux
• IBM WebSphere Service Registry and Repository 8.5
• Amazon Linux 2
• IBM InfoSphere Information Server 11.7
• Open Source OpenJDK
• Red Hat Enterprise Linux
• IBM Tivoli Netcool/OMNIbus 8.1.0
• Ubuntu Linux
• IBM WebSphere Application Server
• SUSE Linux
• IBM Tivoli Netcool/OMNIbus
• Oracle Linux

and 48 more

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

What helps?

Update to at least:

• Amazon Corretto 8.462.08.1
• Amazon Corretto 11.0.28.6.1
• IBM Semeru Runtime 8.0.462.0
• IBM Semeru Runtime 11.0.28.0
• IBM Semeru Runtime 17.0.16.0
• IBM Semeru Runtime 21.0.8.0
• IBM Java 8.0.8.50
• IBM MQ 9.1.0.31
• IBM MQ 9.2.0.37
• IBM MQ 9.3.0.31
• IBM MQ 9.4.0.15
• IBM MQ 9.4.3.1

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.