Design/Logic Flaw

BIND 9.16.11 - 9.16.26, 9.17.0 - 9.18.0 and versions 9.16.11-S1 - 9.16.26-S1 of the BIND Supported Preview Edition. Specifically crafted TCP streams can cause connections to BIND to remain in CLOSEWAIT status for an indefinite period of time, even after the client has terminated the connection...