A malicious packet can force OpenLDAP to fail an assertion in certificateListValidate function in servers/slapd/schema_init.c. https://git.openldap.org/openldap/openldap/-/commit/67670f4544e28fb09eb7319c39f404e1d3229e65 CREATE(Triage):(User=admin) [CVE-2020-25709|https://nvd.nist.gov/vuln/detail/CVE-2020-25709]