[tor-bugs] #25036 [Applications/Tor Browser]: Tor Browser 7.5 rejects connections to raw ipv6 addresses

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#25036: Tor Browser 7.5 rejects connections to raw ipv6 addresses
------------------------------------------+----------------------
     Reporter:  pastly                    |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
------------------------------------------+----------------------
 OS X 10.11.6, Tor Browser 7.5

 I have to configure TB to use a socks5 proxy to reach the internet (I
 predict this is unrelated). I disabled safe logging.

 Attempting to go to https://[2a00:1450:401b:800::200e]/ produces the
 following Tor logs.

 {{{
 1/26/18, 14:51:25.600 [NOTICE] Bootstrapped 85%: Finishing handshake with
 first hop
 1/26/18, 14:51:48.700 [NOTICE] Bootstrapped 90%: Establishing a Tor
 circuit
 1/26/18, 14:51:50.000 [NOTICE] Tor has successfully opened a circuit.
 Looks like client functionality is working.
 1/26/18, 14:51:50.000 [NOTICE] Bootstrapped 100%: Done
 1/26/18, 14:51:50.900 [NOTICE] New control connection opened from
 127.0.0.1.
 1/26/18, 14:51:51.000 [NOTICE] New control connection opened from
 127.0.0.1.
 1/26/18, 14:54:06.900 [WARN] Your application (using socks5 to port 443)
 gave Tor a malformed hostname: "2a00:1450:401b:800::200e". Rejecting the
 connection.
 1/26/18, 14:54:06.900 [WARN] Your application (using socks5 to port 443)
 gave Tor a malformed hostname: "2a00:1450:401b:800::200e". Rejecting the
 connection.
 1/26/18, 14:55:38.200 [WARN] Your application (using socks5 to port 443)
 gave Tor a malformed hostname: "2a00:1450:401b:800::200e". Rejecting the
 connection.
 1/26/18, 14:55:38.200 [WARN] Your application (using socks5 to port 443)
 gave Tor a malformed hostname: "2a00:1450:401b:800::200e". Rejecting the
 connection.
 }}}

 https://ipv6.google.com works with every 6th circuit. I'm sure this is
 unrelated and has to do with exits half supporing ipv6 or something.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25036>
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