[tor-bugs] #4822 [Tor Client]: Avoid vulnerability CVE-2011-4576 : Disable SSL3?

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Thu Jan 5 02:05:49 UTC 2012


#4822: Avoid vulnerability CVE-2011-4576 : Disable SSL3?
------------------------+---------------------------------------------------
 Reporter:  nickm       |          Owner:                    
     Type:  defect      |         Status:  needs_review      
 Priority:  critical    |      Milestone:  Tor: 0.2.1.x-final
Component:  Tor Client  |        Version:                    
 Keywords:              |         Parent:                    
   Points:              |   Actualpoints:                    
------------------------+---------------------------------------------------

Comment(by rransom):

 Replying to [comment:8 nickm_mobile]:
 > Maybe SSL_OP_NO_SSLv3?  It seems to exist; haven't tested when it
 appeared.

 This appears to be sufficient to keep us from ever calling `ssl3_enc` (the
 function in OpenSSL which contains The Bug), because it ensures that we
 will never use an SSL 3 ‘method’.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4822#comment:10>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online


More information about the tor-bugs mailing list