CVE-2021-4034: polkit’s pkexec utility vulnerability

Situation

CVE-2021-4034 vulnerability was discovered in pkexec utility.

Impact

Local privilege escalation through polkit's pkexec utility.

Call to Action

Apply security patches from OS vendor:

• Debian: CVE-2021-4034
• Ubuntu: USN-5252-2
• RedHat-based (CentOS, RHEL, CloudLinux, AlmaLinux etc): CVE-2021-4034