[tor-bugs] #12411 [Orbot]: Orbot broke using DNSPort

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#12411: Orbot broke using DNSPort
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 Reporter:  isis                                 |          Owner:  n8fr8
     Type:  defect                               |         Status:  new
 Priority:  normal                               |      Milestone:
Component:  Orbot                                |        Version:
 Keywords:  orbot-14.0.3.1, orbot-14.0.4, wtf,   |  Actual Points:
  software-engineering                           |         Points:
Parent ID:                                       |
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 Orbot 14.0.3.1 completely breaks networking, if you have firewall scripts
 which don't allow leaks.

 '''THIS MEANS THAT ORBOT IS LEAKING LIKE THE FUCKING PENTAGON PAPERS,
 EXCEPT NOT IN A GOOD WAY.'''

 This is because Orbot (as of 14.0.3.1 and later)
 [https://gitweb.torproject.org/orbot.git/commitdiff/2ce9ea92f14f7b5c04798809f0c262475766977e
 sets `DNSPort 0`], which disables tor's `DNSPort` entirely. This means
 that people who use iptables scripts outside of Orbot (as described in
 [https://blog.torproject.org/blog/mission-impossible-hardening-android-
 security-and-privacy Mike Perry's recent blog post]) to redirect UDP DNS
 traffic to the `DNSPort` cannot do so. It also means that ''every other
 application will leak traffic all over the place''.

 Currently, the only way to fix this mess is to force stop and uninstall
 Orbot, download an older (14.0.1) .apk onto another device, and copy it
 over manually to the broken one to reinstall it. This is ridiculous.
 You're practically bricking people's devices, and you're forcing them to
 jump through extreme hoops to preserve their anonymity.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12411>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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