[tbb-bugs] #30541 [Applications/Tor Browser]: webgl readPixels FP entropy

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed May 29 11:33:51 UTC 2019


#30541: webgl readPixels FP entropy
-------------------------------------------------+-------------------------
 Reporter:  Thorin                               |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-fingerprinting,                  |  Actual Points:
  TorBrowserTeam201905R, GeorgKoppen201905       |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by acat):

 Patch looks good to me too, tested on Linux. One small note: you could use
 `nsContentUtils::ResistFingerprinting(aCallerType)`, which already has the
 `aCallerType != CallerType::System` check.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30541#comment:12>
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