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Re: [tor-bugs] #29607 [Core Tor/Tor]: Denial of service on v2 onion service

#29607: Denial of service on v2 onion service
--------------------------+--------------------------
 Reporter:  pidgin        |          Owner:  pidgin
     Type:  defect        |         Status:  accepted
 Priority:  Immediate     |      Milestone:
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+--------------------------
Changes (by teor):

 * parent:  #25461 =>


Comment:

 Ok, so this is not #25461.

 Here's another interesting log:
 {{{
 -scrubbed-:47:25.000 [warn] Failed to find node for hop #1 of our path.
 Discarding this circuit.
 }}}

 This looks like an instance of #28962, where Tor fails guards based on the
 absolute number of failures of each guard, rather than checking if the
 guard is (much) worse than the average number of failures.

 We might end up fixing #28862 as part of this ticket, or as part of our
 IPv6 work.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29607#comment:21>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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