Seeing "SSL_CTX_use_certificate:ee key too small" error after upgrading to RHEL 8

Issue

• Why does httpd fail to start with "SSL Library Error: error:140AB18F:SSL routines:SSL_CTX_use_certificate:ee key too small"? /var/log/httpd/ssl_error_log sample:

  AH02562: Failed to configure certificate www1.example.com:443:0 (with chain), check /etc/pki/tls/certs/server.crt
  SSL Library Error: error:140AB18F:SSL routines:SSL_CTX_use_certificate:ee key too small
  

• NGINX fails to start with "key too small" error:

  [emerg] SSL_CTX_use_certificate("/etc/nginx/certs/cert") failed (SSL: error:140AB18F:SSL routines:SSL_CTX_use_certificate:ee key too small)
  

• On a RHEL-8 server on which Red Hat Satellite 6 is installed, following error messages can be found in the /var/log/httpd/foreman-ssl_error_ssl.log log file:

  [Tue Dec 19 12:58:05.891928 2023] [ssl:emerg] [pid 3366536] AH02561: Failed to configure certificate satellite123.example.com:443:0, check /etc/pki/katello/certs/katello-apache.crt
  [Tue Dec 19 12:58:05.894898 2023] [ssl:emerg] [pid 3366536] SSL Library Error: error:140AB18F:SSL routines:SSL_CTX_use_certificate:ee key too small