What it is about

Vim (Vi IMproved) ist eine Weiterentwicklung des Texteditors vi. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in vim ausnutzen, um einen Denial-of-Service zu verursachen oder möglicherweise die Ausführung von beliebigem Code zu erreichen.

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 zu verursachen oder möglicherweise die Ausführung von beliebigem Code zu erreichen

Am I affected?

Affected according to the BSI:

• Dell NetWorker
• Fedora Linux
• Ubuntu Linux
• SUSE Linux
• SUSE openSUSE
• Dell Avamar
• Open Source vim <v9.1.2148
• Dell Secure Connect Gateway <5.36.00.16

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

What helps?

Update to at least:

• Open Source vim v9.1.2148
• Dell Secure Connect Gateway 5.36.00.16

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.