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+postfix (3.7.11-0+deb12u1) bookworm; urgency=medium
+
+ [Wietse Venema]
+
+ * 3.7.11
+ - Bugfix (defect introduced: Postfix 2.3, date 20051222): the
+ Dovecot auth client did not reset the 'reason' from a
+ previous Dovecot auth service response, before parsing the
+ next Dovecot auth server response in the same SMTP session.
+ Reported by Stephan Bosch, File: xsasl/xsasl_dovecot_server.c.
+ - Cleanup: Postfix SMTP server response with an empty
+ authentication failure reason. File: smtpd/smtpd_sasl_glue.c.
+ - Bugfix (defect introduced: Postfix 3.1, date: 20151128):
+ "postqueue -j" produced broken JSON when escaping a control
+ character as \uXXXX. Found during code maintenance. File:
+ postqueue/showq_json.c.
+ - Cleanup: posttls-finger certificate match expectations for
+ all TLS security levels, including warnings for levels that
+ don't implement certificate matching. Viktor Dukhovni.
+ File: posttls-finger.c.
+ - Bugfix (defect introduced: Postfix 2.3): after prepending
+ a message header with a Postfix access table PREPEND action,
+ a Milter request to delete or update an existing header
+ could have no effect, or it could target the wrong instance
+ of an existing header. Root cause: the fix dated 20141018
+ for the Postfix Milter client was incomplete. The client
+ did correctly hide the first, Postfix-generated, Received:
+ header when sending message header information to a Milter
+ with the smfi_header() application callback function, but
+ it was still hiding the first header (instead of the first
+ Received: header) when handling requests from a Milter to
+ delete or update an existing header. Problem report by
+ Carlos Velasco. This change was verified to have no effect
+ on requests from a Milter to add or insert a header. File:
+ cleanup/cleanup_milter.c.
+ - Workaround: tlsmgr logfile spam. Some OS lies under load:
+ it says that a socket is readable, then it says that the
+ socket has unread data, and then it says that read returns
+ EOF, causing Postfix to spam the log with a warning message.
+ File: tlsmgr/tlsmgr.c.
+ - Bugfix (defect introduced: Postfix 3.4): the SMTP server's
+ BDAT command handler could be tricked to read $message_size_limit
+ bytes into memory. Found during code maintenance. File:
+ smtpd/smtpd.c.
+ - Performance: eliminate worst-case behavior where the queue
+ manager defers delivery to all destinations over a specific
+ delivery transport, after only a single delivery agent
+ failure. The scheduler now throttles one destination, and
+ allows deliveries to other destinations to keep making
+ progress. Files: *qmgr/qmgr_deliver.c.
+ - Safety: drop and log over-size DNS responses resulting in
+ more than 100 records. This 20x larger than the number of
+ server addresses that the Postfix SMTP client is willing
+ to consider when delivering mail, and is well below the
+ number of records that could cause a tail recursion crash
+ in dns_rr_append() as reported by Toshifumi Sakaguchi. This
+ also limits the number of DNS requests from check_*_*_access
+ restrictions. Files: dns/dns.h, dns/dns_lookup.c, dns/dns_rr.c,
+ dns/test_dns_lookup.c, posttls-finger/posttls-finger.c,
+ smtp/smtp_addr.c, smtpd/smtpd_check.c.
+
+ -- Scott Kitterman <scott@kitterman.com> Wed, 06 Mar 2024 10:10:14 -0500
+
postfix (3.7.10-0+deb12u1) bookworm; urgency=medium
[Wietse Venema]