{"id":"CVE-2020-25692","details":"A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.","aliases":["BIT-openldap-2020-25692"],"modified":"2026-04-16T04:38:31.650105450Z","published":"2020-12-08T01:15:12.133Z","related":["SUSE-SU-2020:14541-1","SUSE-SU-2020:3313-1","SUSE-SU-2020:3314-1","SUSE-SU-2020:3315-1","openSUSE-SU-2020:1918-1","openSUSE-SU-2020:1920-1"],"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210108-0006/"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1894567"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openldap/openldap","events":[{"introduced":"0"},{"fixed":"c2792e6279154c187a0ffaf643572d7588acb9d0"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"2.4.55"}]}}],"versions":["AUTOCONF_2_57","LDAP_3_3+prerelease","LDBM_POST_GIANT_RWLOCK","LDBM_PRE_GIANT_RWLOCK","NO_SLAP_OP_BLOCKS","OPENDLAP_REL_ENG_2_2_MP","OPENLDAP_AC_BP","OPENLDAP_REL_ENG_1_0_0","OPENLDAP_REL_ENG_2_1_BP","OPENLDAP_REL_ENG_2_1_MP","OPENLDAP_REL_ENG_2_2_BP","OPENLDAP_REL_ENG_2_2_MP","OPENLDAP_REL_ENG_2_3_BP","OPENLDAP_REL_ENG_2_4_0ALPHA","OPENLDAP_REL_ENG_2_4_10","OPENLDAP_REL_ENG_2_4_11","OPENLDAP_REL_ENG_2_4_12","OPENLDAP_REL_ENG_2_4_13","OPENLDAP_REL_ENG_2_4_14","OPENLDAP_REL_ENG_2_4_15","OPENLDAP_REL_ENG_2_4_16","OPENLDAP_REL_ENG_2_4_17","OPENLDAP_REL_ENG_2_4_18","OPENLDAP_REL_ENG_2_4_19","OPENLDAP_REL_ENG_2_4_1ALPHA","OPENLDAP_REL_ENG_2_4_20","OPENLDAP_REL_ENG_2_4_21","OPENLDAP_REL_ENG_2_4_22","OPENLDAP_REL_ENG_2_4_23","OPENLDAP_REL_ENG_2_4_24","OPENLDAP_REL_ENG_2_4_25","OPENLDAP_REL_ENG_2_4_26","OPENLDAP_REL_ENG_2_4_27","OPENLDAP_REL_ENG_2_4_28","OPENLDAP_REL_ENG_2_4_29","OPENLDAP_REL_ENG_2_4_2ALPHA","OPENLDAP_REL_ENG_2_4_30","OPENLDAP_REL_ENG_2_4_32","OPENLDAP_REL_ENG_2_4_33","OPENLDAP_REL_ENG_2_4_34","OPENLDAP_REL_ENG_2_4_35","OPENLDAP_REL_ENG_2_4_36","OPENLDAP_REL_ENG_2_4_37","OPENLDAP_REL_ENG_2_4_38","OPENLDAP_REL_ENG_2_4_39","OPENLDAP_REL_ENG_2_4_3ALPHA","OPENLDAP_REL_ENG_2_4_40","OPENLDAP_REL_ENG_2_4_41","OPENLDAP_REL_ENG_2_4_42","OPENLDAP_REL_ENG_2_4_43","OPENLDAP_REL_ENG_2_4_44","OPENLDAP_REL_ENG_2_4_45","OPENLDAP_REL_ENG_2_4_46","OPENLDAP_REL_ENG_2_4_47","OPENLDAP_REL_ENG_2_4_48","OPENLDAP_REL_ENG_2_4_49","OPENLDAP_REL_ENG_2_4_4ALPHA","OPENLDAP_REL_ENG_2_4_50","OPENLDAP_REL_ENG_2_4_51","OPENLDAP_REL_ENG_2_4_52","OPENLDAP_REL_ENG_2_4_53","OPENLDAP_REL_ENG_2_4_54","OPENLDAP_REL_ENG_2_4_5BETA","OPENLDAP_REL_ENG_2_4_6","OPENLDAP_REL_ENG_2_4_7","OPENLDAP_REL_ENG_2_4_8","OPENLDAP_REL_ENG_2_4_9","OPENLDAP_REL_ENG_2_4_BP","OPENLDAP_REL_ENG_2_BP","OPENLDAP_REL_ENG_2_MP","OPENLDAP_SLAPD_BACK_LDAP"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25692.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"5.0"}]},{"events":[{"introduced":"0"},{"last_affected":"6.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}