CVE-2020-25710
A flaw was found in OpenLDAP in versions before 2.4.56.
Published May 28, 2021 · updated Oct 14, 2026 · openldap openldap
A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.
Timeline
Detection, updates, and resolution for this record.
May 28, 2021 · NIST NVD
Detected
A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.
Oct 14, 2026 · NIST NVD
Updated
A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.
Affected
- cpe debian/debian linux9.0
- cpe fedoraproject/fedora33
- cpe openldap/openldapversion unspecified
- cpe redhat/enterprise linux5.0
- cpe redhat/enterprise linux6.0
- cpe redhat/enterprise linux7.0
- cpe redhat/jboss core servicesversion unspecified
- cpe redhat/jboss enterprise application platform5.0.0
- cpe redhat/jboss enterprise web server2.0.0
Sources
- CVE.orgCVE-2020-25710
Official CVE identifier
cve.org - NIST NVDCVE-2020-25710
A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.
nvd.nist.gov