How to update glibc on ubuntu 20.04 due to security vulnerability
According to https://ubuntu.com/security/CVE-2021-33574 , https://launchpad.net/bugs/cve/CVE-2021-33574 and https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1927192 you have to wait when "Fix Committed" will become "Fix Released" for Ubuntu 20.04 LTS (Focal Fossa).