[tbb-bugs] #22315 [Applications/Tor Browser]: Make use of interceptor to protect memory on Windows (spin-off from #12426)

Tor Bug Tracker & Wiki blackhole at torproject.org
Sat May 20 18:50:12 UTC 2017

#22315: Make use of interceptor to protect memory on Windows (spin-off from #12426)
     Reporter:  cypherpunks               |      Owner:  tbb-team
         Type:  enhancement               |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:  tbb-security
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
 > add EnableLowFragmentationHeap() modified from ‚Äčhttps://dxr.mozilla.org
 It was an old approach from Google that couldn't be applied, because it
 was single-threaded and led to:
 So that they added just
 from a well-known approach
 fragmentation-heap, but with that test
 So you can add Chromium's solution as fast and easy fix (as in #12426),
 but for the default heap only.

 A more general approach is to use an interceptor for LFH, bottom-up ASLR
 and other mitigations on every relevant memory allocation:

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22315>
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