In the `ldapd` service, delegated BSD authentication results are correlated using only the LDAP child process client file descriptor and LDAP message ID. If a connection closes and a subsequent connection reuses the same file descriptor and message ID, it may receive the authentication result from the previous session. This allows a remote attacker to complete a Bind operation as a different identity. Additionally, a missing connection can lead to a NULL pointer dereference, which occurs when the software attempts to read data from a memory address that is null, typically causing the application to crash.