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Re: [tor-bugs] #16397 [Tor Browser]: Tor Browser closes unexpectedly

#16397: Tor Browser closes unexpectedly
-------------------------+-------------------------------------------------
     Reporter:  mcap     |      Owner:  mcs
         Type:  defect   |     Status:  needs_review
     Priority:           |  Milestone:
  critical               |    Version:
    Component:  Tor      |   Keywords:  tbb-crash, tbb-usability-website,
  Browser                |  TorBrowserTeam201506R
   Resolution:           |  Parent ID:
Actual Points:           |
       Points:           |
-------------------------+-------------------------------------------------
Changes (by mcs):

 * keywords:  tbb-crash, tbb-usability-website => tbb-crash, tbb-usability-
     website, TorBrowserTeam201506R
 * status:  assigned => needs_review


Comment:

 A fix is available here:
 https://gitweb.torproject.org/user/brade/tor-
 browser.git/commit/?h=bug16397-01&id=2c1d0dada80bad43abba0f4a9d283bf5dc02c201
 Please review.

 This crash was in nsXMLContentSink.cpp (first change in our patch).  But
 Kathy and I tried hard to locate each place where the Mozilla code assumed
 that a <script> element could be QI'd to an nsIScriptElement, and then we
 fixed the unsafe pointer dereferences.

 I think this fix can wait for our next scheduled release.  But it is a
 NULL pointer dereference and a potential denial of service for users who
 have the security slider set to the high setting.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16397#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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