[tor-bugs] #14098 [Tor Browser]: TBB still fingerprintable by screen size

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Jan 12 16:59:47 UTC 2015


#14098: TBB still fingerprintable by screen size
-----------------------------+--------------------------------
     Reporter:  cypherpunks  |      Owner:  tbb-team
         Type:  defect       |     Status:  new
     Priority:  normal       |  Milestone:
    Component:  Tor Browser  |    Version:
   Resolution:               |   Keywords:  tbb-fingerprinting
Actual Points:               |  Parent ID:
       Points:               |
-----------------------------+--------------------------------

Comment (by mcs):

 Replying to [comment:2 randybytes]:
 > it looks like someone has already attempted to block the screenX and
 screenY, but it is not happening, window.screen property has the correct
 information available.  https://github.com/tomrittervg/tor-
 browser/blob/70783c6cdb4bb0ce88fa17e814dc67fddc6ce078/dom/base/nsGlobalWindow.cpp#L4352

 Access to properties within window.screen has been patched as well.  Are
 you seeing a case where window.screen leaks the actual display dimensions
 or other info?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14098#comment:6>
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