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[tor-bugs] #18383 [Tor]: common_digests_t loops should be N_COMMON_DIGEST_ALGORITHMS

#18383: common_digests_t loops should be N_COMMON_DIGEST_ALGORITHMS
---------------------------+--------------------------------
     Reporter:  teor       |      Owner:
         Type:  defect     |     Status:  new
     Priority:  Very High  |  Milestone:  Tor: 0.2.8.x-final
    Component:  Tor        |    Version:
     Severity:  Critical   |   Keywords:
Actual Points:             |  Parent ID:
       Points:             |    Sponsor:
---------------------------+--------------------------------
 networkstatus_get_detached_signatures and
 networkstatus_add_detached_signatures use N_DIGEST_ALGORITHMS as a loop
 counter for common_digests_t, when it should use
 N_COMMON_DIGEST_ALGORITHMS.

 This reads or writes memory out of array bounds on directory authorities.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18383>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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