{"id":"CVE-2020-12243","details":"In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).","aliases":["BIT-openldap-2020-12243"],"modified":"2026-04-16T04:37:44.481552102Z","published":"2020-04-28T19:15:12.267Z","related":["SUSE-SU-2020:1193-1","SUSE-SU-2020:1210-1","SUSE-SU-2020:1219-1","SUSE-SU-2020:14358-1","openSUSE-SU-2020:0647-1"],"references":[{"type":"ADVISORY","url":"https://support.apple.com/kb/HT211289"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4352-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4352-2/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4666"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/05/msg00001.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20200511-0003/"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00016.html"},{"type":"ADVISORY","url":"https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGES"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuoct2020.html"},{"type":"FIX","url":"https://bugs.openldap.org/show_bug.cgi?id=9202"},{"type":"FIX","url":"https://git.openldap.org/openldap/openldap/-/commit/98464c11df8247d6a11b52e294ba5dd4f0380440"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openldap/openldap","events":[{"introduced":"0"},{"fixed":"733124b32fc4798384f06e16098229ff7b721d0e"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"2.4.50"}]}}],"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_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-2020-12243.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"15.1"}]},{"events":[{"introduced":"0"},{"last_affected":"12.04"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"19.10"}]},{"events":[{"introduced":"0"},{"last_affected":"20.04"}]},{"events":[{"introduced":"10.13.0"},{"fixed":"10.13.6"}]},{"events":[{"introduced":"10.14.0"},{"fixed":"10.14.6"}]},{"events":[{"introduced":"10.15"},{"fixed":"10.15.6"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2018\\-002"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2018\\-003"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2019\\-001"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2019\\-002"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2019\\-003"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2019\\-004"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2019\\-005"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2019\\-006"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2019\\-007"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2020\\-001"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2020\\-002"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-security_update_2020\\-003"}]},{"events":[{"introduced":"0"},{"last_affected":"10.13.6-supplemental_update"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2019\\-001"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2019\\-002"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2019\\-004"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2019\\-005"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2019\\-006"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2019\\-007"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2020\\-001"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2020\\-002"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2020\\-003"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2020\\-004"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2020\\-005"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2020\\-006"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2020\\-007"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2021\\-001"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2021\\-002"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-security_update_2021\\-003"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-supplemental_update"}]},{"events":[{"introduced":"0"},{"last_affected":"10.14.6-supplemental_update_2"}]},{"events":[{"introduced":"0"},{"last_affected":"8.8"}]},{"events":[{"introduced":"0"},{"last_affected":"10"}]},{"events":[{"introduced":"0"},{"last_affected":"11"}]}]}}],"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"}]}