Log message:
mail/dovecot2: update to 2.3.13

Update mail/dovecot2 pacakge to 2.3.13, including security fixes.

v2.3.13 2021-01-04	Aki Tuomi <aki.tuomi@open-xchange.com>

	* CVE-2020-24386: Specially crafted command can cause IMAP hibernate to
	  allow logged in user to access other people's emails and filesystem
	  information.
	* Metric filter and global event filter variable syntax changed to a
	  SQL-like format. See https://doc.dovecot.org/configuration_manual/event_filter/
	* auth: Added new aliases for %{variables}. Usage of the old ones is
	  possible, but discouraged.
	* auth: Removed RPA auth mechanism, SKEY auth mechanism, NTLM auth
	  mechanism and related password schemes.
	* auth: Removed passdb-sia, passdb-vpopmail and userdb-vpopmail.
	* auth: Removed postfix postmap socket
	+ auth: Added new fields for auth server events. These fields are now
	  also available for all auth events. See
	  https://doc.dovecot.org/admin_manual/list_of_events/#authentication-server
	  for details.
	+ imap-hibernate: Added imap_client_hibernated, imap_client_unhibernated
	  and imap_client_unhibernate_retried events. See
	  https://doc.dovecot.org/admin_manual/list_of_events/ for details.
	+ lib-index: Added new mail_index_recreated event. See
	  https://doc.dovecot.org/admin_manual/list_of_events/#mail-index-recreated
	+ lib-sql: Support TLS options for cassandra driver. This requires
	  cpp-driver v2.15 (or later) to work reliably.
	+ lib-storage: Missing $HasAttachment / $HasNoAttachment flags are now
	  added to existing mails if mail_attachment_detection_option=add-flags
	  and it can be done inexpensively.
	+ login proxy: Added login_proxy_max_reconnects setting (default 3) to
	  control how many reconnections are attempted.
	+ login proxy: imap/pop3/submission/managesieve proxying now supports
	  reconnection retrying on more than just connect() failure. Any error
	  except a non-temporary authentication failure will result in reconnect
	  attempts.
	- auth: Lua passdb/userdb leaks stack elements per call, eventually
	  causing the stack to become too deep and crashing the auth or
	  auth-worker process.
	- auth: SASL authentication PLAIN mechanism could be used to trigger
	  read buffer overflow. However, this doesn't seem to be exploitable in
	  any way.
	- auth: v2.3.11 regression: GSSAPI authentication fails because dovecot
	  disallows NUL bytes for it.
	- dict: Process used too much CPU when iterating keys, because each key
	  used a separate write() syscall.
	- doveadm-server: Crash could occur if logging was done outside command
	  handling. For example http-client could have done debug logging
	  afterwards, resulting in either segfault or
	  Panic: file http-client.c: line 642 (http_client_context_close):
	  assertion failed: (cctx->clients_list == NULL).
	- doveadm-server: v2.3.11 regression: Trying to connect to doveadm server
	  process via starttls assert-crashed if there were no ssl=yes listeners:
	  Panic: file master-service-ssl.c: line 22 (master_service_ssl_init):
	  assertion failed: (service->ssl_ctx_initialized).
	- fts-solr: HTTP requests may have assert-crashed:
	  Panic: file http-client-request.c: line 1232 (http_client_request_send_more):
	  assertion failed: (req->payload_input != NULL)
	- imap: IMAP NOTIFY could crash with a segmentation fault due to a bad
	  configuration that causes errors. Sending the error responses to the
	  client can cause the segmentation fault. This can for example happen
	  when several namespaces use the same mail storage location.
	- imap: IMAP NOTIFY used on a shared namespace that doesn't actually
	  exist (e.g. public namespace for a nonexistent user) can crash with a panic:
	  Panic: Leaked view for index /tmp/home/asdf/mdbox/dovecot.list.index: Opened \ 
in (null):0
	- imap: IMAP session can crash with QRESYNC extension if many changes
	  are done before asking for expunged mails since last sync.
	- imap: Process might hang indefinitely if client disconnects after
	  sending some long-running commands pipelined, for example FETCH+LOGOUT.
	- lib-compress: Mitigate crashes when configuring a not compiled in
	  compression. Errors with compression configuration now distinguish
	  between not supported and unknown.
	- lib-compression: Using xz/lzma compression in v2.3.11 could have
	  written truncated output in some situations. This would result in
	  "Broken pipe" read errors when trying to read it back.
	- lib-compression: zstd compression could have crashed in some situations:
	  Panic: file ostream.c: line 287 (o_stream_sendv_int): assertion failed: \ 
(!stream->blocking)
	- lib-dict: dict client could have crashed in some rare situations when
	  iterating keys.
	- lib-http: Fix several assert-crashes in HTTP client.
	- lib-index: v2.3.11 regression: When mails were expunged at the same
	  time as lots of new content was being saved to the cache (e.g. cache
	  file was lost and is being re-filled) a deadlock could occur with
	  dovecot.index.cache / dovecot.index.log.
	- lib-index: v2.3.11 regression: dovecot.index.cache file was being
	  purged (rewritten) too often when it had a field that hadn't been
	  accessed for over 1 month, but less than 2 months. Every cache file
	  change caused a purging in this situation.
	- lib-mail: MIME parts were not returned correctly by Dovecot MIME parser.
	  Regression caused by fixing CVE-2020-12100.
	- lib-mail: When max nested MIME parts were reached, IMAP BODYSTRUCTURE
	  was written in a way that may have caused confusion for both IMAP
	  clients and Dovecot itself when parsing it. The truncated part is now
	  written out using application/octet-stream MIME type.
	- lib-mail: v2.3.11 regression: Mail delivery / parsing crashed when the
	  10000th MIME part was message/rfc822 (or if parent was multipart/digest):
	  Panic: file message-parser.c: line 167 (message_part_append):
	  assertion failed: (ctx->total_parts_count <= ctx->max_total_mime_parts).
	- lib-oauth2: Dovecot incorrectly required oauth2 server introspection
	  reply to contain username with invalid token.
	- lib-ssl-iostream, lib-dcrypt: Fix building with OpenSSL that has
	  deprecated APIs disabled.
	- lib-storage: When mail's size is different from the cached one (in
	  dovecot.index.cache or Maildir S=size in the filename), this is
	  handled by logging "Cached message size smaller/larger than expected"
	  error. However, in some situations this also ended up crashing with:
	  Panic: file istream.c: line 315 (i_stream_read_memarea):
	  assertion failed: (old_size <= _stream->pos - _stream->skip).
	- lib-storage: v2.3 regression: Copying/moving mails was taking much more
	  memory than before. This was mainly visible when copying/moving
	  thousands of mails in a single transaction.
	- lib-storage: v2.3.11 regression: Searching messages assert-crashed
	  (without FTS): Panic: file message-parser.c: line 174 (message_part_finish):
	  assertion failed: (ctx->nested_parts_count > 0).
	- lib: Dovecot v2.3 moved signal handlers around in ioloops,
	  causing more CPU usage than in v2.2.
	- lib: Fixed JSON parsing: '\' escape sequence may have wrongly resulted
	  in error if it happened to be at read boundary. Any NUL characters and
	  '\u0000' will now result in parsing error instead of silently
	  truncating the data.
	- lmtp, submission: Server may hang if SSL client connection disconnects
	  during the delivery. If this happened repeated, it could have ended
	  up reaching process_limit and preventing any further lmtp/submission
	  deliveries.
	- lmtp: Proxy does not always properly log TLS connection problems as
	  errors; in some cases, only a debug message is logged if enabled.
	- lmtp: The LMTP service can hang when commands are pipelined. This can
	  particularly occur when one command in the middle of the pipeline fails.
	  One example of this occurs for proxied LMTP transactions in which the
	  final DATA or BDAT command is pipelined after a failing RCPT command.
	- login-proxy: The login_source_ips setting has no effect, and therefore
	  the proxy source IPs are not cycled through as they should be.
	- master: Process was using 100% CPU in some situations when a broken
	  service was being throttled.
	- pop3-login: POP3 login would fail with "Input buffer full" if the
	  initial response for SASL was too long.
	- stats: Crash would occur when generating openmetrics data for metrics
	  using aggregating functions.

Log message:
Revbump for openpam cppflags change months ago, belatedly.

Log message:
dovecot2-gssapi: GSSAPI can contain NUL.

Log message:
mail/dovocot2: update to 2.3.11.3

Update dovecot2 and related packages to 2.3.11.3.

v2.3.11.3 2020-07-29	Aki Tuomi <aki.tuomi@open-xchange.com>

	- pop3-login: Login didn't handle commands in multiple IP packets properly.
	  This mainly affected large XCLIENT commands or a large SASL initial
	  response parameter in the AUTH command.
	- pop3: pop3_deleted_flag setting was broken, causing:
	  Panic: file seq-range-array.c: line 472 (seq_range_array_invert):
	  assertion failed: (range[count-1].seq2 <= max_seq)

v2.3.11.2 2020-07-13	Aki Tuomi <aki.tuomi@open-xchange.com>

	- auth: Lua passdb/userdb leaks stack elements per call, eventually
	  causing the stack to become too deep and crashing the auth or
	  auth-worker process.
	- lib-mail: v2.3.11 regression: MIME parts not returned correctly by
	  Dovecot MIME parser.
	- pop3-login: Login would fail with "Input buffer full" if the initial
	  response for SASL was too long.

v2.3.11 2020-06-17  Aki Tuomi <aki.tuomi@open-xchange.com>

	* CVE-2020-12100: Parsing mails with a large number of MIME parts could
	  have resulted in excessive CPU usage or a crash due to running out of
	  stack memory.
	* CVE-2020-12673: Dovecot's NTLM implementation does not correctly check
	  message buffer size, which leads to reading past allocation which can
	  lead to crash.
	* CVE-2020-12674: Dovecot's RPA mechanism implementation accepts
	  zero-length message, which leads to assert-crash later on.
	* Events: Fix inconsistency in events. See event documentation in
	  https://doc.dovecot.org.
	* imap_command_finished event's cmd_name field now contains "unknown"
	  for unknown commands. A new "cmd_input_name" field contains the
	  command name exactly as it was sent.
	* lib-index: Renamed mail_cache_compress_* settings to mail_cache_purge_*.
	  Note that these settings are mainly intended for testing and usually
	  shouldn't be changed.
	* events: Renamed "index" event category to "mail-index".
	* events: service:<name> category is now using the name from
	  configuration file.
	* dns-client: service dns_client was renamed to dns-client.
	* log: Prefixes generally use the service name from configuration file.
	  For example dict-async service will now use
	  "dict-async(pid): " log prefix instead of "dict(pid): "
	* *-login: Changed logging done by proxying to use a consistent prefix
	  containing the IP address and port.
	* *-login: Changed disconnection log messages to be slightly clearer.
	+ dict: Add events for dictionaries.
	+ lib-index: Finish logging with events.
	+ oauth2: Support local validation of JWT tokens.
	+ stats: Add support for dynamic histograms and grouping. See
	  https://doc.dovecot.org/configuration_manual/stats/.
	+ imap: Implement RFC 8514: IMAP SAVEDATE
	+ lib-index: If a long-running transaction (e.g. SORT/FETCH on a huge
	  folder) adds a lot of data to dovecot.index.cache file, commit those
	  changes periodically to make them visible to other concurrent sessions
	  as well.
	+ stats: Add OpenMetrics exporter for statistics. See
	  https://doc.dovecot.org/configuration_manual/stats/openmetrics/.
	+ stats: Support disabling stats-writer socket by setting
	  stats_writer_socket_path="".
	- auth-worker: Process keeps slowly increasing its memory usage and
	  eventually dies with "out of memory" due to reaching vsz_limit.
	- auth: Prevent potential timing attacks in authentication secret
	  comparisons: OAUTH2 JWT-token HMAC, imap-urlauth token, crypt() result.
	- auth: Several auth-mechanisms allowed input to be truncated by NUL
	  which can potentially lead to unintentional issues or even successful
	  logins which should have failed.
	- auth: When auth policy returned a delay, auth_request_finished event
	  had policy_result=ok field instead of policy_result=delayed.
	- auth: auth process crash when auth_policy_server_url is set to an
	  invalid URL.
	- dict-ldap: Crash occurs if var_expand template expansion fails.
	- dict: If dict client disconnected while iteration was still running,
	  dict process could have started using 100% CPU, although it was still
	  handling clients.
	- doveadm: Running doveadm commands via proxying may hang, especially
	  when doveadm is printing a lot of output.
	- imap: "MOVE * destfolder" goes to a loop copying the last mail to the
	  destination until the imap process dies due to running out of memory.
	- imap: Running "UID MOVE 1:* Trash" on an empty folder goes to infinite
	  loop.
	- imap: SEARCH doesn't support $.
	- lib-compress: Buffer over-read in zlib stream read.
	- lib-dns: If DNS lookup times out, lib-dns can cause crash in calling
	  process.
	- lib-index: Fixed several bugs in dovecot.index.cache handling that
	  could have caused cached data to be lost.
	- lib-index: Writing to >=1 GB dovecot.index.cache files may cause
	  assert-crashes:
	  Panic: file mail-index-util.c: line 37 (mail_index_uint32_to_offset):
	  assertion failed: (offset < 0x40000000)
	- lib-ssl-iostream: Fix buggy OpenSSL error handling without
	  assert-crashing. If there is no error available, log it as an error
	  instead of crashing:
	  Panic: file iostream-openssl.c: line 599 (openssl_iostream_handle_error):
	  assertion failed: (errno != 0)
	- lib-ssl-iostream: ssl_key_password setting did not work.
	- submission: A segfault crash may occur when the client or server
	  disconnects while a non-transaction command like NOOP or VRFY is still
	  being processed.
	- virtual: Copying/moving mails with IMAP into a virtual folder assert-crashes:
	  Panic: file cmd-copy.c: line 152 (fetch_and_copy): assertion failed:
	  (copy_ctx->copy_count == seq_range_count(&copy_ctx->saved_uids))

Log message:
mail/dovecot2: update to 2.3.10.1

Update dovecot2 to 2.3.10.1.

v2.3.10.1  2020-05-18  Aki Tuomi <aki.tuomi@open-xchange.com>

- CVE-2020-10957: lmtp/submission: A client can crash the server by
  sending a NOOP command with an invalid string parameter. This occurs
  particularly for a parameter that doesn't start with a double quote.
  This applies to all SMTP services, including submission-login, which
  makes it possible to crash the submission service without
  authentication.
- CVE-2020-10958: lmtp/submission: Sending many invalid or unknown
  commands can cause the server to access freed memory, which can lead
  to a server crash. This happens when the server closes the connection
  with a "421 Too many invalid commands" error. The bad command limit
  depends on the service (lmtp or submission) and varies between 10 to
  20 bad commands.
- CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an
  address that has the empty quoted string as local-part causes the lmtp
  service to crash.

Log message:
dovecot2: updated to 2.3.10

v2.3.10
* Disable retpoline migitations by default. These can cause severe
  performance regressions, so they should be only enabled when
  applicable.
* IMAP MOVE now commits transactions in batches of 1000 mails. This
  helps especially with lazy_expunge when moving a lot of mails. It
  mainly avoids situations where multiple IMAP sessions are running the
  same MOVE command and duplicating the mails in the lazy_expunge folder.
  With this change there can still be some duplication, but the MOVE
  always progresses forward. Also if the MOVE fails at some point, the
  changes up to the last 1000 mails are still committed instead of
  rolled back. Note that the COPY command behavior hasn't changed,
  because it is required by IMAP standard to be an atomic operation.
* IMAP EXPUNGE and CLOSE now expunges mails in batches of 1000 mails.
  This helps especially with lazy_expunge when expunging a lot of mails
  (e.g. millions) to make sure that the progress always moves forward
  even if the process is killed.
* Autoexpunging now expunges mails in batches of 1000 mails. This helps
  especially with lazy_expunge when expunging a lot of mails
  (e.g. millions) to make sure that the progress always moves forward
  even if the process is killed.
+ Add tool for generating sysreport called dovecot-sysreport.
  This generates a bundle of information usually needed for support
  requests.
+ Add support for the new IMAP \Important SPECIAL-USE flag (RFC 8457).
+ Add metric { group_by } setting. This allows automatically creating
  new metrics based on the fields you want to group statistics by.
  NOTE: This feature is considered experimental and syntax is subject
  to change in future release.
+ auth: Support SCRAM-SHA-256 authentication mechanism.
+ imap: Support the new IMAP STATUS=SIZE extension.
+ Use TCP_QUICKACK to reduce latency for some TCP connections.
+ quota-status: Made the service more robust against erroneous use with
  Postfix ACL policies other than smtpd_recipient_restrictions.
+ Add "revision" field support to imap_id_send setting. Using
  "revision *" will send in IMAP ID command response the short commit
  hash of the Dovecot git source tree HEAD (same as in dovecot --version).
+ IMAP ENVELOPE includes now all addresses when there are multiple
  headers (From, To, Cc, etc.) The standard way of having multiple
  addresses is to just list them all in a single header. It's
  non-standard to have multiple headers. However, since MTAs allow these
  mails to pass through and different software may handle them in
  different ways, it's better from security point of view to show all
  the addresses.
+ Event filters now support using "field_name=" to match a field that
  doesn't exist or has an empty value. For example use "error=" to match
  only events that didn't fail.
- acl: INBOX ACLs shouldn't apply for IMAP GETMETADATA/SETMETADATA
  commands.
- cassandra: CASS_ERROR_SERVER_WRITE_FAILURE error should also be
  treated as "uncertain write failure".
- dict-redis: Using quota_clone configured with dict-redis could have
  crashed when Redis responded slowly.
- imap-hibernate: Communication trouble with imap-master leads to
  segfault.
- imap-hibernate: Unhibernation retrying wasn't working.
- imap: Fixed auth lookup privilege problem when imap process was reused
  and user was being un-hibernated.
- Fix potential crash when copying/moving mails within the same folder.
  This happened only when there were a lot of fields in dovecot.index.cache.
- lib-index: Recreating dovecot.index.cache file could have crashed when
  merging bitmask fields.
- lib-index: Using public/shared folders with INDEXPVT configured to use
  private \Seen flags, trying to search seen/unseen in an empty folder
  crashes with segfault.
- lib-mail: Large base64-encoded mails weren't decoded properly.
  This could have affected searching/indexing mails and message snippet
  generation.
- lib-mail: Message with only quoted text could have caused message
  snippet to ignore its 200 character limit and return the entire
  message. This was added also to dovecot.index.cache file, which
  increased disk space and memory usage unnecessarily.
  v2.3.9.2 regression (previous versions cached the quoted snippet as
  empty). In a large mail quoted text could have become wrongly added
  to the snippet, possibly mixed together with non-quoted text.
- lib-smtp: client could have assert-crashed if STARTTLS handshake
  finished earlier than usually.
- lib-ssl-iostream: remove -static flag for lib-ssl-iostream linking to
  prevent a compile issue.
- lib-storage: Mailbox synchronization may have assert-crashed in some
  rare situations.
- lib-storage: mdbox didn't preserve date.saved with dsync.
- lib: Don't require EAI_{ADDRFAMILY,NODATA}, breaks FreeBSD
- master: Some services could respawn unthrottled if they crash during
  startup.
- push-notification: Do not send push_notification_finished event if
  nothing was done. This happens when mail transaction is started and
  ended with no changes.
- quota-status: Addresses with special characters in the local part caused
  problems in the interaction between Postfix and Dovecot. Postfix sent
  its own internal representation in the recipient field, while Dovecot
  expected a valid RFC5321 mailbox address.
- submission-login: SESSION was not correctly encoded field for the
  XCLIENT command. Particularly, a '+' character introduced by the
  session ID's Base64 encoding causes problems.
- submission: Fix submission_max_mail_size to work correctly on 32-bit
  systems.
- submission: Trusted connections crashed in second connection's EHLO
  if submission-login { service_count } is something else than 1 (which
  is the default).
- submission: XCLIENT command was never used in the protocol exchange
  with the relay MTA when submission_backend_capabilities is configured,
  even when the relay MTA was properly configured to accept the XCLIENT
  command.

Log message:
mail/dovecot2: update to 2.3.9.3

Update dovecot2 to 2.3.9.3, security release.

v2.3.9.3 2019-02-12  Aki Tuomi <aki.tuomi@open-xchange.com>

	* CVE-2020-7046: Truncated UTF-8 can be used to DoS
	  submission-login and lmtp processes.
	* CVE-2020-7957: Specially crafted mail can crash snippet generation.

Log message:
*: Remove obsolete BUILDLINK_API_DEPENDS.openssl.

Log message:
*: Recursive revision bump for openssl 1.1.1.

Log message:
mail/dovecot2: update to 2.3.9.2

Update doveot2 to 2.3.9.2, previous fix for CVE-2019-19722 was partial fix.

v2.3.9.2 2019-12-13  Aki Tuomi <aki.tuomi@open-xchange.com>

	- Mails with empty From/To headers can also cause crash
	  in push notification drivers.