[tor-bugs] #26806 [Core Tor/Tor]: Check if Tor clients sometimes send duplicate cells on rendezvous circuits: Possible replay detected! An INTRODUCE2 cell with thesame ENCRYPTED section was seen

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#26806: Check if Tor clients sometimes send duplicate cells on rendezvous circuits:
Possible replay detected! An INTRODUCE2 cell with thesame ENCRYPTED section
was seen
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 Reporter:  s7r           |          Owner:  (none)
     Type:  defect        |         Status:  closed
 Priority:  High          |      Milestone:  Tor: 0.4.3.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:  duplicate
 Keywords:  tor-hs        |  Actual Points:
Parent ID:  #29995        |         Points:
 Reviewer:                |        Sponsor:  Sponsor27-must
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Changes (by dgoulet):

 * status:  new => closed
 * resolution:   => duplicate


Comment:

 For HSv3, we have #32020 that should help fix this problem.

 After looking at #21084, I doubt this would be the problem because once
 the circuit opens, we attach the pending connection to the circuit.
 Another call to `has_opened()` will not trigger more INTRO cells since the
 client connection(s) aren't in the pending list anymore.

 Closing in favor of #32020 and possibly #15618.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26806#comment:10>
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