[tor-bugs] #7139 [Tor]: Tor involuntarily sets TLS session tickets

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Thu Oct 18 10:29:58 UTC 2012


#7139: Tor involuntarily sets TLS session tickets
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    Reporter:  nextgens            |        Type:  defect                        
      Status:  needs_review        |    Priority:  major                         
   Milestone:  Tor: 0.2.2.x-final  |   Component:  Tor                           
     Version:                      |    Keywords:  tor-relay ssl tls security pfs
      Parent:                      |      Points:                                
Actualpoints:                      |  
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Comment(by nextgens):

 So, my point number 2 in the original report is incorrect and should read:

 2) security: It has implications regarding PFS (the key material
 encrypting the ticket is ephemeral but might be swapped out to disk) and
 exposes more attack surface than strictly necessary (Tor doesn't use the
 tickets in any case)

 The PFS interval is not linked to MAX_SSL_KEY_LIFETIME_INTERNAL at all.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7139#comment:6>
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