CVE-2020-12243
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).
Published Apr 28, 2020 · updated Oct 14, 2026 · openldap openldap
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).
Timeline
Detection, updates, and resolution for this record.
Apr 28, 2020 · NIST NVD
Detected
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).
Oct 14, 2026 · NIST NVD
Updated
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).
Affected
- cpe canonical/ubuntu linux12.04
- cpe canonical/ubuntu linux14.04
- cpe canonical/ubuntu linux16.04
- cpe debian/debian linux10.0
- cpe debian/debian linux8.0
- cpe debian/debian linux9.0
- cpe netapp/cloud backupversion unspecified
- cpe netapp/h300s firmwareversion unspecified
- cpe netapp/h410c firmwareversion unspecified
- cpe netapp/h500s firmwareversion unspecified
- cpe openldap/openldapversion unspecified
- cpe opensuse/leap15.1
Sources
- CVE.orgCVE-2020-12243
Official CVE identifier
cve.org - FIRST EPSSCVE-2020-12243
30-day exploitation probability 4.7%
first.org - NIST NVDCVE-2020-12243
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).
nvd.nist.gov