[tor-bugs] #10065 [Tor bundles/installation]: Improve Hardening for TBB3.0

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Jan 22 17:20:30 UTC 2014


#10065: Improve Hardening for TBB3.0
-------------------------------------+-------------------------------------
     Reporter:  mikeperry            |      Owner:  erinn
         Type:  defect               |     Status:  accepted
     Priority:  major                |  Milestone:
    Component:  Tor                  |    Version:
  bundles/installation               |   Keywords:  tbb-3.0, gitian, tbb-
   Resolution:                       |  security
Actual Points:                       |  Parent ID:
       Points:                       |
-------------------------------------+-------------------------------------

Comment (by erinn):

 -pie is definitely the culprit. I built two TBBs: one with DEP/ASLR and no
 -pie and another with DEP/ASLR and -pie. The latter crashes and the former
 doesn't. I also get the same wrong AddressOfEntryPoint (00001000) in the
 build with -pie whereas in the non-pie build I get the correct one
 (000014b0).

 It took a little wrangling but I eventually got all of the libs we build
 building with DEP/ASLR (this is including the Firefox libs). I think we
 should consider extending that to the libssp we build in mingw-64, but I
 didn't look into how to do that yet.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10065#comment:8>
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