[tor-bugs] #8864 [Tor]: Hidden service: Suddenly the service does not respond to new connections (INTRODUCE2 cell on intro circ with no corresponding rend_intro_point_t)

[Tor Bug Tracker & Wiki]

#8864: Hidden service: Suddenly the service does not respond to new connections
(INTRODUCE2 cell on intro circ with no corresponding rend_intro_point_t)
------------------------+---------------------------------------------
     Reporter:  reiam   |      Owner:
         Type:  defect  |     Status:  needs_review
     Priority:  normal  |  Milestone:  Tor: 0.2.???
    Component:  Tor     |    Version:  Tor: 0.2.3.25
   Resolution:          |   Keywords:  tor-hs 023-backport 025-triaged
Actual Points:          |  Parent ID:
       Points:          |
------------------------+---------------------------------------------

Comment (by dgoulet):

 Small IRC log on that:


 09:54 < dgoulet> nickm: so about #8864, it would leak that there is a new
 consensus for that HS but you'll only know if you are the IP no? I mean
 who can learn that the IP circuit is closing down is the HS and the IP or
 am I missing something?
 09:55 < nickm> dgoulet: anybody who knows the IP can try connecting to it
 and see that the circuit is gone?

 09:57 < dgoulet> nickm: yes but how can you differentiate from a node not
 in the consensus and IP rotation? hrm... I'm answering myself, you fetch
 the consensus, check if the node is in, connect to the IP, no HS there so
 you know that the HS has updated
 10:00 < dgoulet> nickm: tbh, I'm not sure how bad it is though to know
 that the relay got a new consensus at a precise time :S
 10:03 < nickm> dgoulet: what if you see when the relay downloads the
 consensus?  That may be observable through other means.
 10:03 < nickm> dgoulet: I'm not sure I'm 100% right, but I think we should
 figure this out

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8864#comment:23>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online