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Re: [tor-bugs] #10286 [Applications/Tor Browser]: Touch events leak absolute screen coordinates

#10286: Touch events leak absolute screen coordinates
-------------------------------------------------+-------------------------
 Reporter:  mikeperry                            |          Owner:
                                                 |  arthuredelstein
     Type:  defect                               |         Status:  closed
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:  fixed
 Keywords:  tbb-fingerprinting-resolution,       |  Actual Points:
  ff52-esr, tbb-testcase, tbb-firefox-patch,     |
  tbb-7.0-must-alpha, TorBrowserTeam201705R      |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor4
-------------------------------------------------+-------------------------
Changes (by gk):

 * status:  needs_review => closed
 * resolution:   => fixed


Comment:

 Replying to [comment:32 mcs]:
 > Replying to [comment:31 mcs]:
 > > I am not yet sure why the failures are occuring. Unfortunately I am
 out of time for now, but I will try to investigate more later tonight or
 early tomorrow.
 >
 > The test failures occurred in the "fingerprinting resistance off" case.
 Kathy came up with a good theory: maybe the doubling of the radius
 occurred because I ran the tests on a Mac with a Retina (2x) display. If
 that is what is happening, this seems like a Firefox bug (maybe in the
 test code that synthesizes events?) since all distance units within the
 Touch Events are supposed to be CSS pixels. This should not prevent us
 from merging these patches.

 Good theory. Do you mind filing an upstream bug for that? Meanwhile, I
 applied the patches to `tor-browser-52.1.0esr-7.0-2` (commits
 1b6559c0763f2ae0c9ad56307642e6d6462c3ede,
 331f089d6b6ba62463d8362d7ca01641a4cc92dc, and
 00d2bfb5067659c352690c06cb85a8b76bc7addb).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10286#comment:33>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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