Pullup ticket #4467 - requested by wiz
net/tor: security update

Revisions pulled up:
- net/tor/Makefile                                              1.99
- net/tor/distinfo                                              1.60

---
   Module Name:	pkgsrc
   Committed By:	wiz
   Date:		Wed Jul 30 11:49:26 UTC 2014

   Modified Files:
   	pkgsrc/net/tor: Makefile distinfo

   Log Message:
   Update to 0.2.4.23:

   Changes in version 0.2.4.23 - 2014-07-28
     Tor 0.2.4.23 brings us a big step closer to slowing down the risk from
     guard rotation, and also backports several important fixes from the
     Tor 0.2.5 alpha release series.

     o Major features:
       - Clients now look at the "usecreatefast" consensus parameter to
         decide whether to use CREATE_FAST or CREATE cells for the first hop
         of their circuit. This approach can improve security on connections
         where Tor's circuit handshake is stronger than the available TLS
         connection security levels, but the tradeoff is more computational
         load on guard relays. Implements proposal 221. Resolves ticket 9386.
       - Make the number of entry guards configurable via a new
         NumEntryGuards consensus parameter, and the number of directory
         guards configurable via a new NumDirectoryGuards consensus
         parameter. Implements ticket 12688.

     o Major bugfixes:
       - Fix a bug in the bounds-checking in the 32-bit curve25519-donna
         implementation that caused incorrect results on 32-bit
         implementations when certain malformed inputs were used along with
         a small class of private ntor keys. This bug does not currently
         appear to allow an attacker to learn private keys or impersonate a
         Tor server, but it could provide a means to distinguish 32-bit Tor
         implementations from 64-bit Tor implementations. Fixes bug 12694;
         bugfix on 0.2.4.8-alpha. Bug found by Robert Ransom; fix from
         Adam Langley.

     o Minor bugfixes:
       - Warn and drop the circuit if we receive an inbound 'relay early'
         cell. Those used to be normal to receive on hidden service circuits
         due to bug 1038, but the buggy Tor versions are long gone from
         the network so we can afford to resume watching for them. Resolves
         the rest of bug 1038; bugfix on 0.2.1.19.
       - Correct a confusing error message when trying to extend a circuit
         via the control protocol but we don't know a descriptor or
         microdescriptor for one of the specified relays. Fixes bug 12718;
         bugfix on 0.2.3.1-alpha.
       - Avoid an illegal read from stack when initializing the TLS
         module using a version of OpenSSL without all of the ciphers
         used by the v2 link handshake. Fixes bug 12227; bugfix on
         0.2.4.8-alpha.  Found by "starlight".

     o Minor features:
       - Update geoip and geoip6 to the July 10 2014 Maxmind GeoLite2
         Country database.
Pullup ticket #4467.