What it is about

Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein lokaler Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux in libxslt ausnutzen, um beliebigen Programmcode auszuführen oder Dateien zu manipulieren.

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 Dateien zu manipulieren

Am I affected?

Affected according to the BSI:

• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• RESF Rocky Linux
• IBM App Connect Enterprise
• Dell Avamar
• NetApp Data ONTAP 9
• Red Hat Enterprise Linux libxslt <1.1.43
• Red Hat OpenShift Container Platform <4.17.28
• Red Hat OpenShift Container Platform <4.15.50
• Red Hat OpenShift Container Platform <4.18.12

and 12 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 Enterprise Linux libxslt 1.1.43
• Red Hat OpenShift Container Platform 4.17.28
• Red Hat OpenShift Container Platform 4.15.50
• Red Hat OpenShift Container Platform 4.18.12
• Red Hat OpenShift Container Platform 4.16.40
• IBM QRadar SIEM 7.5.0 UP12
• Red Hat OpenShift Container Platform 4.13.58
• Red Hat OpenShift Data Foundation 4.17.7
• Red Hat OpenShift Container Platform 4.14.52
• Red Hat OpenShift Container Platform 4.12.77
• Tenable Security Nessus 10.8.5
• Tenable Security Nessus 10.9.0

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.