What it is about

Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, einen Denial-of-Service-Zustand zu verursachen oder vertrauliche Informationen offenzulegen.

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

• einen Cross-Site Scripting Angriff durchzuführen
• einen Denial-of-Service-Zustand zu verursachen oder vertrauliche Informationen offenzulegen

Am I affected?

Affected according to the BSI:

• Red Hat Enterprise Linux
• Oracle Linux
• IBM QRadar SIEM
• IBM InfoSphere Information Server
• Red Hat Enterprise Linux Quarkus <3.20.4.SP1
• Red Hat Enterprise Linux Quarkus <3.27.1.SP1
• Red Hat JBoss Enterprise Application Platform <8.1.4
• IBM App Connect Enterprise
• IBM Tivoli Business Service Manager <6.2.0 FP7

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 Quarkus 3.20.4.SP1
• Red Hat Enterprise Linux Quarkus 3.27.1.SP1
• Red Hat JBoss Enterprise Application Platform 8.1.4
• IBM Tivoli Business Service Manager 6.2.0 FP7

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.