This update for apache2 fixes the following issues: - CVE-2020-9490: Fixed a crash caused by a specially crafted value for the "Cache-Digest" header in a HTTP/2 request . - CVE-2020-11984: Fixed an information disclosure bug in mod_proxy_uwsgi . - CVE-2020-11993: When trace/debug was enabled for the HTTP/2 module logging statements were made on the wrong connection . - Solve a crash in mod_proxy_uwsgi for empty values of environment variables