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.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1856
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-039
http://www.vupen.com/english/advisories/2007/2481
http://www.us-cert.gov/cas/techalerts/TA07-191A.html
http://www.securitytracker.com/id?1018355
http://www.securityfocus.com/bid/24796
http://www.kb.cert.org/vuls/id/348953
http://secunia.com/advisories/26002
http://archive.cert.uni-stuttgart.de/bugtraq/2007/07/msg00254.html