Apache HTTP Server mod_cluster is vulnerable to improper input validation. An attacker could use this flaw to cause a Segmentation Fault in the serving httpd process which leads to disclosure of information.
rhn.redhat.com/errata/RHSA-2016-2957.html
www.securityfocus.com/bid/94939
access.redhat.com/errata/RHSA-2016:2957
access.redhat.com/errata/RHSA-2017:0193
access.redhat.com/errata/RHSA-2017:0194
access.redhat.com/security/cve/CVE-2016-8612
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1387605
security.netapp.com/advisory/ntap-20180601-0005/