[tor-bugs] #16308 [Torsocks]: Attempts to resolve local hostname using tor

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Jun 7 19:19:04 UTC 2015


#16308: Attempts to resolve local hostname using tor
--------------------------+---------------------
     Reporter:  leeroy    |      Owner:  dgoulet
         Type:  defect    |     Status:  new
     Priority:  normal    |  Milestone:
    Component:  Torsocks  |    Version:
   Resolution:            |   Keywords:
Actual Points:            |  Parent ID:
       Points:            |
--------------------------+---------------------

Comment (by yawning):

 Offhand I think the correct fix is to ensure that apps can't get the
 actual hostname/domainname (`localhost.localdomain` is a fine response),
 as applications running under torsocks have precisely 0 business in
 knowing this information.  There's a bunch of things that would need to be
 stubbed for this to happen:
  * `gethostname(3P)`
  * `getdomainname(2)`
  * `uname(2)`
  * `SYS_gethostname`

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16308#comment:2>
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