What it is about

Red Hat Enterprise Linux (libxslt) (RHEL) ist eine populäre Linux-Distribution. Ein lokaler Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux (libxslt) ausnutzen, um beliebigen Programmcode auszuführen oder einen Denial of Service herbeiführen.

Under what conditions?

Only with access to the device or an account on it. Often the second step after a phishing email.

What can happen in the worst case

An attacker could use the vulnerability to

• beliebigen Programmcode auszuführen oder einen Denial of Service herbeiführen

Am I affected?

Affected according to the BSI:

• Dell NetWorker
• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• IBM App Connect Enterprise
• IBM MQ Operator
• Dell Avamar
• IBM MQ Container
• Red Hat OpenShift Container Platform <4.15.57

and 10 more

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

What helps?

Update to at least:

• Red Hat OpenShift Container Platform 4.15.57
• Red Hat OpenShift Container Platform 4.17.38
• Red Hat OpenShift Container Platform 4.19.10
• Red Hat OpenShift Container Platform 4.12.80
• IBM MQ Appliance 9.4.0.16
• IBM MQ Appliance 9.4.4.0
• Dell Secure Connect Gateway Appliance 5.32.00.18
• Tenable Security Nessus 10.11.1
• Tenable Security Nessus 10.9.6

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.