[tor-bugs] #25295 [Core Tor/Tor]: Torsocks only accepts IPv4 replies but Tor prefers IPv6Automap by default

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#25295: Torsocks only accepts IPv4 replies but Tor prefers IPv6Automap by default
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 Reporter:  fuzzyTew                    |          Owner:  dgoulet
     Type:  defect                      |         Status:
                                        |  needs_information
 Priority:  Medium                      |      Milestone:  Tor:
                                        |  0.3.4.x-final
Component:  Core Tor/Tor                |        Version:  Tor:
                                        |  0.3.3.2-alpha
 Severity:  Major                       |     Resolution:
 Keywords:  tor torsocks ipv6 fast-fix  |  Actual Points:
Parent ID:                              |         Points:
 Reviewer:  mikeperry                   |        Sponsor:
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Comment (by nickm):

 IPv6 automap is indeed much safer than IPv4: even with 24 bits of IPv4
 automap space (eg, mapping into 10/8 or 127/8), it's still IMO too easy
 for a webpage to try guessing a bunch of addresses in the automapped range
 to see whether any of them are already mapped.

 I'd rather not make this change in Tor.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25295#comment:5>
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