[tor-bugs] #13893 [Tor Browser]: Torbrowser crashes on start when using MS EMET 5.x

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#13893: Torbrowser crashes on start when using MS EMET 5.x
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 Reporter:  Diapolo                              |          Owner:  gk
     Type:  defect                               |         Status:
 Priority:  High                                 |  needs_revision
Component:  Tor Browser                          |      Milestone:
 Severity:  Major                                |        Version:
 Keywords:  tbb-security, tbb-crash tbb-         |     Resolution:
  usability-stoppoint-app TorBrowserTeam201601,  |  Actual Points:
  GeorgKoppen201601                              |         Points:
Parent ID:                                       |
  Sponsor:  SponsorU                             |
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Comment (by bugzilla):

 Hmm, does release version of the product have --disable-optimize enabled?
 EMET works fine, and mingw-w64 generates code as it asked to, but
 IOInterposer and AvailableMemoryTracker use unsafe technique (for Mozilla
 profiler, leaked from debug).
 Not "EMET doesn't like", but Tor Browser is vulnerable.
 In comment:31 mentioned that severity was set to Blocker, because this bug
 blocks Tor Browser from running in secured environments, but not in all
 envs - so, severity is Critical in all of them. You've always fired crash
 bugs with Critical, it is just copied.
 But there is no crash: EMET closes unsec app immediately that looks like
 crash.
 And it is not incompatibility between 2 apps: EMET rules are set to close
 unsec apps by default.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13893#comment:35>
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