What it is about

Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.

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

Am I affected?

Affected according to the BSI:

• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• SUSE openSUSE
• RESF Rocky Linux
• IBM App Connect Enterprise
• Red Hat Enterprise Linux 10
• Red Hat Enterprise Linux 9
• Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
• Red Hat Enterprise Linux 9.4 Extended Update Support
• Splunk Splunk Enterprise <10.2.2
• Splunk Splunk Enterprise <10.0.5

and 4 more

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

What helps?

Update to at least:

• Splunk Splunk Enterprise 10.2.2
• Splunk Splunk Enterprise 10.0.5
• Splunk Splunk Enterprise 9.4.10
• Splunk Splunk Enterprise 9.3.11
• Splunk SOAR 8.7.0

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.