[tor-bugs] #18559 [Tor Browser]: Number of logical processors is detectable from web content

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#18559: Number of logical processors is detectable from web content
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     Reporter:  gk           |      Owner:  tbb-team
         Type:  defect       |     Status:  new
     Priority:  Medium       |  Milestone:
    Component:  Tor Browser  |    Version:
     Severity:  Normal       |   Keywords:  tbb-fingerprinting
Actual Points:               |  Parent ID:
       Points:               |   Reviewer:
      Sponsor:  None         |
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 The number of logical processors is detectable from web content.
 Currently, this can be done using https://github.com/oftn/core-estimator:
 {{{
 The total number of cores available to the user agent can already be
 approximated with high accuracy given enough time using the polyfill in
 the appendix on a system with low to moderate system load.
 }}}
 (see: https://wiki.whatwg.org/wiki/NavigatorCores)

 But soon this is getting exposed directly:
 https://bugzilla.mozilla.org/show_bug.cgi?id=1008453

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18559>
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