[tor-bugs] #15515 [Tor]: Don't allow multiple INTRODUCE1s on the same circuit

[Tor Bug Tracker & Wiki]

#15515: Don't allow multiple INTRODUCE1s on the same circuit
-------------------------+-------------------------------------------------
     Reporter:  asn      |      Owner:
         Type:  defect   |     Status:  needs_review
     Priority:  normal   |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor      |    Version:
   Resolution:           |   Keywords:  026-backport 025-backport
Actual Points:           |  024-backport
       Points:           |  Parent ID:  #15463
-------------------------+-------------------------------------------------

Comment (by yawning):

 Replying to [comment:8 arma]:
 > I asked weasel about the efficacy of an 0.2.4 backport here: "jessie
 will release in april, and that might move a lot of people to 0.2.5.x
 within a relatively short period of time. so maybe wait for that?" "also,
 which versions of 0.2.4 are they running? 0.2.4.26? if not, they aren't
 using squeeze or wheezy anyway."
 >
 > I'm just trying to sort out if, for relays not running the latest
 0.2.4.x, a new 0.2.4.x is going to help them or us any.

 Based off the current consensus:
 {{{
       1 v Tor 0.2.4.18-rc
       4 v Tor 0.2.4.19
     190 v Tor 0.2.4.20
      69 v Tor 0.2.4.21
     132 v Tor 0.2.4.22
     902 v Tor 0.2.4.23
       1 v Tor 0.2.4.23-dev
     750 v Tor 0.2.4.24
      26 v Tor 0.2.4.25
     688 v Tor 0.2.4.26
 }}}

 ~24.9% are on latest 0.2.4.x.  I'm unsure of how many of the remainder
 will upgrade if we make a lot of noise about upgrading.  Given some of the
 other changes pending that I also believe should go into maint-0.2.4, I'm
 still in favor of a backport here.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15515#comment:11>
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