[MacPorts] #52655: tpr-devel updated to 0.2.9.4-alpha (includes security fix)

[MacPorts]

#52655: tpr-devel updated to 0.2.9.4-alpha (includes security fix)
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 Reporter:  macports.org@…       |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:
 Keywords:  haspatch maintainer  |       Port:  tor-devel
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 Tor 0.2.9.4-alpha fixes a security hole in previous versions of Tor
   that would allow a remote attacker to crash a Tor client, hidden
   service, relay, or authority. All Tor users should upgrade to this
   version, or to 0.2.8.9. Patches will be released for older versions
   of Tor.

   o Major features (security fixes):
     - Prevent a class of security bugs caused by treating the contents
       of a buffer chunk as if they were a NUL-terminated string. At
       least one such bug seems to be present in all currently used
       versions of Tor, and would allow an attacker to remotely crash
       most Tor instances, especially those compiled with extra compiler
       hardening. With this defense in place, such bugs can't crash Tor,
       though we should still fix them as they occur. Closes ticket
       20384 (TROVE-2016-10-001).

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Ticket URL: <https://trac.macports.org/ticket/52655>
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