[tor-bugs] #2358 [Tor Client]: Windows ASLR is not enabled for tor.exe, and DEP should be forced

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Fri Jan 7 05:42:19 UTC 2011


#2358: Windows ASLR is not enabled for tor.exe, and DEP should be forced
-------------------------+--------------------------------------------------
 Reporter:  special      |       Owner:                    
     Type:  enhancement  |      Status:  needs_review      
 Priority:  normal       |   Milestone:  Tor: 0.2.2.x-final
Component:  Tor Client   |     Version:                    
 Keywords:               |      Parent:                    
-------------------------+--------------------------------------------------

Comment(by special):

 I can't find a clear answer on this; ASLR is definitely enabled for the
 executable's address with this patch, but DLLs that don't have dynamicbase
 set may not be randomized. That must happen while building the DLL. It
 would probably be worth putting similar logic into libevent, and perhaps
 openssl, to prevent exploits from leveraging those to gain some sort of
 access.

 From my understanding, after this patch, the most important parts (Tor
 itself, and all system DLLs used by Tor) will be randomized.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2358#comment:4>
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