What it is about

Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Fast Datapath für Red Hat Enterprise Linuxausnutzen, um einen Denial of Service Angriff durchzuführen oder vertrauliche Informationen offenzulegen.

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

• einen Denial of Service Angriff durchzuführen oder vertrauliche Informationen offenzulegen

Am I affected?

Affected according to the BSI:

• Red Hat Enterprise Linux
• SUSE Linux
• SUSE openSUSE
• Red Hat Enterprise Linux ovn-2021 Fast Datapath 8
• Red Hat Enterprise Linux ovn23.06 Fast Datapath 8
• Red Hat Enterprise Linux ovn23.06 Fast Datapath 9
• Red Hat Enterprise Linux ovn23.09 Fast Datapath 9
• Red Hat Enterprise Linux ovn24.03 Fast Datapath 9
• Red Hat Enterprise Linux ovn25.03 Fast Datapath 9
• Red Hat Enterprise Linux ovn25.09 Fast Datapath 9

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

What helps?

Install the updates provided by the vendor; details in the sources below.

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.