This update for apache2 fixes the following issues: - CVE-2021-30641: Fixed MergeSlashes regression - CVE-2021-31618: Fixed NULL pointer dereference on specially crafted HTTP/2 request - CVE-2020-35452: Fixed Single zero byte stack overflow in mod_auth_digest - CVE-2021-26690: Fixed mod_session NULL pointer dereference in parser - CVE-2021-26691: Fixed Heap overflow in mod_session - Fixed potential content spoofing with default error pages - Fixed for an issue when "gensslcert" does not set CA:True