A flaw was discovered in ldap_X509dn2bv in OpenLDAP before 2.4.57 leading to a slapd crash in the X.509 DN parsing in ad_keystring, resulting in denial of service.Referenceshttps://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57https://bugs.openldap.org/show_bug.cgi?id=9425https://git.openldap.org/openldap/openldap/-/commit/4bdfffd2889c0c5cdf58bebafbdc8fce4bb2bff0https://lists.debian.org/debian-lts-announce/2021/02/msg00005.htmlhttps://www.debian.org/security/2021/dsa-4845https://security.netapp.com/advisory/ntap-20210226-0002/https://support.apple.com/kb/HT212529https://support.apple.com/kb/HT212531https://support.apple.com/kb/HT212530http://seclists.org/fulldisclosure/2021/May/70http://seclists.org/fulldisclosure/2021/May/64http://seclists.org/fulldisclosure/2021/May/65https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Ehttps://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
