The LDAP service in Windows Active Directory in Microsoft Windows 2000 Server SP4 does not properly check \the number of convertible attributes\ which allows remote attackers to cause a denial of service (service unavailability) via a crafted LDAP request related to \client sent LDAP request logic \ aka \Windows Active Directory Denial of Service Vulnerability\. NOTE: this is probably a different issue than CVE-2007-0040.