SASL 2.1.27 rc8

[Ken Murchison]

All,

I have built a eighth (and hopefully last) release candidate of SASL 
2.1.27 which can be downloaded from here:

* HTTP:

     https://www.cyrusimap.org/releases/cyrus-sasl-2.1.27-rc8.tar.gz
     https://www.cyrusimap.org/releases/cyrus-sasl-2.1.27-rc8.tar.gz.sig

* FTP:

     ftp://ftp.cyrusimap.org/cyrus-sasl/cyrus-sasl-2.1.27-rc8.tar.gz
     ftp://ftp.cyrusimap.org/cyrus-sasl/cyrus-sasl-2.1.27-rc8.tar.gz.sig


The primary reason for this candidate is to revert the GSSAPI flag 
changes.  I'd like to roll out the final release early next week, so 
please test this RC as soon as possible.


The (mostly) complete list of changes from 2.1.26 are these:

  * Added support for OpenSSL 1.1
  * Added support for lmdb (from Howard Chu)
  * Lots of build fixes (from Ignacio Casal Quinteiro and others)
  * Treat SCRAM and DIGEST-MD5 as more secure than PLAIN when selecting
    client mech
  * DIGEST-MD5 plugin:
      o Fixed memory leaks
      o Fixed a segfault when looking for non-existent reauth cache
      o Prevent client from going from step 3 back to step 2
      o Allow cmusaslsecretDIGEST-MD5 property to be disabled
  * GSSAPI plugin:
      o Added support for retrieving negotiated SSF
      o Properly compute maxbufsize AFTER security layers have been set
  * SCRAM plugin:
      o Added support for SCRAM-SHA-256
      o Allow SCRAM-* to be used by HTTP
  * LOGIN plugin:
      o Don’t prompt client for password until requested by server
  * NTLM plugin:
      o Fixed crash due to uninitialized HMAC context
  * saslauthd:
      o cache.c:
          + Don’t use cached credentials if timeout has expired
          + Fixed debug logging output
      o ipc_doors.c:
          + Fixed potential DoS attack (from Oracle)
      o ipc_unix.c:
          + Prevent premature closing of socket
      o auth_rimap.c:
          + Added support LOGOUT command
          + Added support for unsolicited CAPABILITY responses in LOGIN
            reply
          + Properly detect end of responses (don’t needlessly wait)
          + Properly handle backslash in passwords
      o auth_httpform:
          + Fix off-by-one error in string termination
          + Added support for 204 success response
      o auth_krb5.c:
          + Added krb5_conv_krb4_instance option
          + Added more verbose error logging



At this point any major changes (e.g. API, wire protocol) will be pushed 
out to 2.1.28 or 2.2.0.

-- 
Kenneth Murchison
Cyrus Development Team
FastMail Pty Ltd

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