[tor-bugs] #33375 [Core Tor/Tor]: Stop advertising an IPv6 exit policy when DNS is broken for IPv6

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#33375: Stop advertising an IPv6 exit policy when DNS is broken for IPv6
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  neel
     Type:  defect                               |         Status:
                                                 |  needs_information
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.4.4.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.2.9.14
 Severity:  Normal                               |     Resolution:
 Keywords:  needs-proposal, security-review-     |  Actual Points:
  dos-risk, extra-review, no-backport, ipv6,     |
  tor-exit, tor-dns                              |
Parent ID:  #24833                               |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by teor):

 * status:  needs_revision => needs_information
 * keywords:
     security-review-dos-risk, extra-review, no-backport, ipv6, tor-exit,
     tor-dns
     =>
     needs-proposal, security-review-dos-risk, extra-review, no-backport,
     ipv6, tor-exit, tor-dns


Comment:

 So there's a bunch of missing data here, a lot of design questions, and a
 lot of risks.

 I think we need a proposal here, so that other developers can review the
 design.
 The proposal should cover the questions I've asked in this ticket.
 And talk about how we can test these changes.

 And then we can update the code, and merge it.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33375#comment:18>
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