[tor-bugs] #9901 [TorBrowserButton]: DoS of TBB 2.4/3.0 when no Content-Type header and more than 512 bytes of content are sent

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#9901: DoS of TBB 2.4/3.0 when no Content-Type header and more than 512 bytes of
content are sent
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     Reporter:  sqrt2             |      Owner:  mikeperry
         Type:  defect            |     Status:  reopened
     Priority:  normal            |  Milestone:
    Component:  TorBrowserButton  |    Version:
   Resolution:                    |   Keywords:  tbb-usability
Actual Points:                    |  Parent ID:
       Points:                    |
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Comment (by cypherpunks):

 You can't bypass exception logging in JavaScript using null.
 {{{
 ACString getTypeFromURI (in nsIURI aURI)
 }}}
 And you can't return null, it will be converted to ACString and passed to
 core as content type. That means you passes non empty content type for any
 case even if string is empty, and if code nothing knows about this type it
 going to do something bad.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9901#comment:66>
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