[tor-bugs] #13753 [Tor]: Validate is_canonical more thoroughly

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Jan 7 15:53:00 UTC 2015


#13753: Validate is_canonical more thoroughly
-----------------------------+--------------------------------
     Reporter:  nickm        |      Owner:
         Type:  enhancement  |     Status:  new
     Priority:  normal       |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:  tor-relay security
Actual Points:               |  Parent ID:
       Points:               |
-----------------------------+--------------------------------

Comment (by nickm):

 The rule is approximately: we should only extend circuits on is_canonical
 channels.

 Right now, we enforce this by checking is_canonical when we call
 channel_get_for_extend.  But perhaps we should also check it when we *do*
 the circuit extend to make sure that the same check is still true.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13753#comment:2>
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