What it is about

Red Hat Enterprise Linux (RHEL) und Oracle Linux (iputils) sind populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux und Oracle Linux (iputils) 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
• IBM Storwize
• RESF Rocky Linux
• Red Hat Enterprise Linux 9
• Red Hat Enterprise Linux 9.2
• Red Hat Enterprise Linux 9.4
• Oracle Linux 9 (x86_64)
• Oracle Linux 9 (aarch64)
• Dell Secure Connect Gateway Appliance <5.32.00.18

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

What helps?

Update to at least:

• Dell Secure Connect Gateway Appliance 5.32.00.18

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.