servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9287
