[tbb-bugs] #17207 [Tor Browser]: Testing navigator.mimeTypes for known names can reveal info and increase fingerprinting risk

[Tor Bug Tracker & Wiki]

#17207: Testing navigator.mimeTypes for known names can reveal info and increase
fingerprinting risk
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     Reporter:  TemporaryNick  |      Owner:  tbb-team
         Type:  defect         |     Status:  needs_information
     Priority:  normal         |  Milestone:
    Component:  Tor Browser    |    Version:
   Resolution:                 |   Keywords:  tbb-fingerprinting
Actual Points:                 |  Parent ID:
       Points:                 |    Sponsor:
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Comment (by teor):

 I attached a modified version that works in Tor Browser 5.0.3 on OS X
 10.10.5.

 It discovers my Microsoft Office installation. It also discovers my
 Wireshark installation.

 This looks like a fingerprint to me, but I don't have multiple machines to
 test it on, so I can't be sure.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17207#comment:6>
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