Log message:
mail/dovecot2: update to 2.3.6

Update dovecot2 and dovecot-{gssapi,ldap,mysql,pgsql,sqlite} to 2.3.6.

v2.3.6 2019-04-30  Aki Tuomi <aki.tuomi@open-xchange.com>

	* CVE-2019-11494: Submission-login crashed with signal 11 due to null
	  pointer access when authentication was aborted by disconnecting.
	* CVE-2019-11499: Submission-login crashed when authentication was
	  started over TLS secured channel and invalid authentication message
	  was sent.
	* auth: Support password grant with passdb oauth2.
	+ Use system default CAs for outbound TLS connections.
	+ Simplify array handling with new helper macros.
	+ fts_solr: Enable configuring batch_size and soft_commit features.
	- lmtp/submission: Fixed various bugs in XCLIENT handling, including a
	  hang when XCLIENT commands were sent infinitely to the remote server.
	- lmtp/submission: Forwarded multi-line replies were erroneously sent
	  as two replies to the client.
	- lib-smtp: client: Message was not guaranteed to contain CRLF
	  consistently when CHUNKING was used.
	- fts_solr: Plugin was no longer compatible with Solr 7.
	- Make it possible to disable certificate checking without
	  setting ssl_client_ca_* settings.
	- pop3c: SSL support was broken.
	- mysql: Closing connection twice lead to crash on some systems.
	- auth: Multiple oauth2 passdbs crashed auth process on deinit.
	- HTTP client connection errors infrequently triggered a segmentation
	  fault when the connection was idle and not used for a particular
	  client instance.

Log message:
dovecot2: updated to 2.3.5.2

v2.3.5.2
* CVE-2019-10691: Trying to login with 8bit username containing
  invalid UTF8 input causes auth process to crash if auth policy is
  enabled. This could be used rather easily to cause a DoS. Similar
  crash also happens during mail delivery when using invalid UTF8 in
  From or Subject header when OX push notification driver is used.

Log message:
Security fix:

    * CVE-2019-7524: Missing input buffer size validation leads into
      arbitrary buffer overflow when reading fts or pop3 uidl header
      from Dovecot index. Exploiting this requires direct write access to
      the index files.

Log message:
Bump version after pkg update.

Log message:
Update mail/dovecot2 to v2.3.5.

From the upstream release-note:

NEWS:

+ Lua push notification driver: mail keywords and flags are provided
in MessageNew and MessageAppend events.
+ submission: Implement support for plugins.
+ auth: When auth_policy_log_only=yes, only log what the policy server
response would do without actually doing it.
+ auth: Always log policy server decisions with auth_verbose=yes
- v2.3.[34]: doveadm log errors: Output was missing user/session
- lda: Debug log lines could have shown slightly corrupted
- login proxy: Login processes may have crashed in various ways when
login_proxy_max_disconnect_delay was set.
- imap: Fix crash with Maildir+zlib if client disconnects during APPEND
- lmtp proxy: Fix potential assert-crash
- lmtp/submission: Fix crash when SMTP client transaction times out
- submission: Split large XCLIENT commands to 512 bytes per command,
so Postfix accepts them.
- submission: Fix crash when client sends invalid BURL command
- submission: relay backend: VRFY command: Avoid forwarding 500 and
502 replies back to client.
- lib-http: Fix potential assert-crash when DNS lookup fails
- lib-fts: Fix search query generation when one language ignores a
token (e.g. via stopwords).

Log message:
mail/dovecot2: update to 2.3.4.1

v2.3.4.1 2019-02-05  Aki Tuomi <aki.tuomi@open-xchange.com>

	* CVE-2019-3814: If imap/pop3/managesieve/submission client has
	  trusted certificate with missing username field
	  (ssl_cert_username_field), under some configurations Dovecot
	  mistakenly trusts the username provided via authentication instead
	  of failing.
	* ssl_cert_username_field setting was ignored with external SMTP AUTH,
	  because none of the MTAs (Postfix, Exim) currently send the
	  cert_username field. This may have allowed users with trusted
	  certificate to specify any username in the authentication. This bug
	  didn't affect Dovecot's Submission service.

Log message:
Provide declarations for kill() and SIGKILL to fix NetBSD-8 build.

Log message:
Move PKGPATH check after bsd.prefs.mk to fix circular dependency.

Log message:
dovecot2: updated to 2.3.4

2.3.4:
 * The default postmaster_address is now "postmaster@<user domain or
   server hostname>". If username contains the @domain part, that's
   used. If not, then the server's hostname is used.
 * "doveadm stats dump" now returns two decimals for the \ 
"avg" field.

 + Added push notification driver that uses a Lua script
 + Added new SQL, DNS and connection events.
   See https://wiki2.dovecot.org/Events
 + Added "doveadm mailbox cache purge" command.
 + Added events API support for Lua scripts
 + doveadm force-resync -f parameter performs "index fsck" while opening
   the index. This may be useful to fix some types of broken index files.
   This may become the default behavior in a later version.
 - director: Kicking a user crashes if login process is very slow
 - pop3_no_flag_updates=no: Don't expunge DELEted and RETRed messages
   unless QUIT is sent.
 - auth: Fix crypt() segfault with glibc-2.28+
 - imap: Running UID FILTER script with errors assert-crashes
 - dsync, pop3-migration: POP3 UIDLs weren't added to
   dovecot.index.cache while mails were saved.
 - dict clients may have been using 100% CPU while waiting for dict
   server to finish commands.
 - doveadm user: Fixed user listing via HTTP API
 - All levels of Cassandra log messages were logged as Dovecot errors.
 - http/smtp client may have crashed after SSL handshake
 - Lua auth converted strings that looked like numbers into numbers.

Log message:
dovecot2: updated to 2.3.3

2.3.3:
* doveconf hides more secrets now in the default output.
* ssl_dh setting is no longer enforced at startup. If it's not set and
  non-ECC DH key exchange happens, error is logged and client is
  disconnected.

+ Added log_debug=<filter> setting.
+ Added log_core_filter=<log filter> setting.
+ quota-clone: Write to dict asynchronously
+ --enable-hardening attempts to use retpoline Spectre 2 mitigations
+ lmtp proxy: Support source_ip passdb extra field.
+ doveadm stats dump: Support more fields and output stddev by default.
+ push-notification: Add SSL support for OX backend.
- NUL bytes in mail headers can cause truncated replies when fetched.
- director: Conflicting host up/down state changes may in some rare
  situations ended up in a loop of two directors constantly overwriting
  each others' changes.
- director: Fix hang/crash when multiple doveadm commands are being
  handled concurrently.
- director: Fix assert-crash if doveadm disconnects too early
- virtual plugin: Some searches used 100% CPU for many seconds
- dsync assert-crashed with acl plugin in some situations.
- mail_attachment_detection_options=add-flags-on-save assert-crashed
  with some specific Sieve scripts.
- Mail snippet generation crashed with mails containing invalid
  Content-Type:multipart header.
- Log prefix ordering was different for some log lines.
- quota: With noenforcing option current quota usage wasn't updated.
- auth: Kerberos authentication against Samba assert-crashed.
- stats clients were unnecessarily chatty with the stats server.
- imapc: Fixed various assert-crashes when reconnecting to server.
- lmtp, submission: Fix potential crash if client disconnects while
  handling a command.
- quota: Fixed compiling with glibc-2.26 / support libtirpc.
- fts-solr: Empty search values resulted in 400 Bad Request errors
- fts-solr: default_ns parameter couldn't be used
- submission server crashed if relay server returned over 7 lines in
  a reply (e.g. to EHLO)