This update for apache2 fixes the following issues:
Apache2 was updated to the current stable version 2.4.51 (jsc#SLE-22733 jsc#SLE-22849)
It fixes all CVEs and selected bugs represented by patches found between 2.4.23 and 2.4.51.
See https://downloads.apache.org/httpd/CHANGES_2.4 for a complete change log.
Also fixed: