[tor-bugs] #7889 [Tor]: Relays should drop/destroy begin cells with streamid 0

[Tor Bug Tracker & Wiki]

#7889: Relays should drop/destroy begin cells with streamid 0
-----------------------+----------------------------------------------------
    Reporter:  arma    |       Owner:                             
        Type:  defect  |      Status:  closed                     
    Priority:  major   |   Milestone:  Tor: 0.2.3.x-final         
   Component:  Tor     |     Version:                             
  Resolution:  fixed   |    Keywords:  tor-relay 023-backport spec
      Parent:          |      Points:                             
Actualpoints:          |  
-----------------------+----------------------------------------------------

Comment(by cypherpunks):

 Drops of cell instead of destroying circuit can't prevent distinguishing
 of clients. Relay can send 100 RELAY_DATA cells with zero stream_id, and
 detect absent of RELAY_SENDME cell from patched client.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7889#comment:14>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online