I am trying to ascertain if a client’s domain is impacted by an issue in the August Security only update for Windows 7 (KB4034679).
The issue is described by Microsoft as:
“Due to a defect in WLDAP32.DLL, applications that perform LDAP referral chasing can consume excessive or all of the available TCP dynamic ports after installing KB 4025337 and KB4025341. Applications and roles known to make these referrals may include Outlook.exe, DFSR, and others.”
I know some of the impacted applications are present, but I’m unsure if the domain will conduct LDAP referral chasing.
- The domain is not part of a forest and is a standalone domain.
- Active Directory is setup with multi-master replication.
It is my understanding that under these conditions that LDAP referral chasing will not be required on the domain.
I am unsure if LDAP referral chasing could initiated by the client applications (for example by outlook.exe), regardless of the domain setup.
Will this domain be impacted by the issue described by Microsoft?