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 (LibRaw) ausnutzen, um beliebigen Programmcode auszuführen.

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

• beliebigen Programmcode auszuführen

Am I affected?

Affected according to the BSI:

• Debian Linux
• Red Hat Enterprise Linux <8
• Red Hat Enterprise Linux Advanced Mission Critical Update Support <8.6
• Red Hat Enterprise Linux Telecommunications Update Service <8.6
• Red Hat Enterprise Linux Update Services for SAP Solutions <8.6
• Red Hat Enterprise Linux Update Services for SAP Solutions <8.8
• Red Hat Enterprise Linux Telecommunications Update Service <8.8
• Red Hat Enterprise Linux Advanced Mission Critical Update Support <8.4
• Red Hat Enterprise Linux Extended Update Support Long-Life Add-On <8.4
• Ubuntu Linux

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 8
• Red Hat Enterprise Linux Advanced Mission Critical Update Support 8.6
• Red Hat Enterprise Linux Telecommunications Update Service 8.6
• Red Hat Enterprise Linux Update Services for SAP Solutions 8.6
• Red Hat Enterprise Linux Update Services for SAP Solutions 8.8
• Red Hat Enterprise Linux Telecommunications Update Service 8.8
• Red Hat Enterprise Linux Advanced Mission Critical Update Support 8.4
• Red Hat Enterprise Linux Extended Update Support Long-Life Add-On 8.4

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.