Use-after-free vulnerability in the proxy-server implementation in IBM Tivoli Directory Server (TDS) 6.0 before 6.0.0.65 (aka 6.0.0.8-TIV-ITDS-IF0007) and 6.3 before 6.3.0.1 (aka 6.3.0.0-TIV-ITDS-IF0001) allows remote authenticated users to cause a denial of service (daemon crash) via a paged search that is interrupted by an LDAP Unbind operation.