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[tor-bugs] #6007 [Tor Relay]: Be more strict about rejecting pre-handshake data in 0.2.2



#6007: Be more strict about rejecting pre-handshake data in 0.2.2
-----------------------+----------------------------------------------------
 Reporter:  nickm      |          Owner:                    
     Type:  defect     |         Status:  new               
 Priority:  major      |      Milestone:  Tor: 0.2.2.x-final
Component:  Tor Relay  |        Version:                    
 Keywords:             |         Parent:                    
   Points:             |   Actualpoints:                    
-----------------------+----------------------------------------------------
 In 0.2.2, while in state OR_CONN_STATE_TLS_SERVER_RENEGOTIATING, if we get
 any data we just let it sit in the inbuf.  We should instead close the
 connection if the data arrives before the handshake, since this is either
 a failed attempt at a v3 handshake, or an attempt to bloat our buffer and
 make us waste ram.

 On 0.2.3, this fix isn't necessary, since any data arriving will get
 treated as an attempt at a v3 handshake.

 Found by pseudnymous user on IRC.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6007>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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