X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=doc%2Fdoc-txt%2FChangeLog;h=d99b2684ac79186ce49d508c95496bd96fc729e6;hb=85defcf0e9e4187107b8a1a5138ef9590ac3892c;hp=5a910c4e1e6dccf61f1ae7cc7b67f4df3e36ebfb;hpb=fdfe718d5ed9f551120a29af214883d59ddb85d1;p=exim.git diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index 5a910c4e1..d99b2684a 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -5,29 +5,46 @@ affect Exim's operation, with an unchanged configuration file. For new options, and new features, see the NewStuff file next to this ChangeLog. -Exim 4.next ----------- +Exim version 4.92 +----------------- JH/01 Remove code calling the customisable local_scan function, unless a new definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile. JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in - non-signal-safe funxtions being used. + non-signal-safe functions being used. -JH/03 Fix syslog logging for syslog_timestamp=no and log_selector +millisec. - Previously the millisecond value corrupted the output. - Fix also for syslog_pid=no and log_selector +pid, for which the pid - corrupted the output. +JH/03 Bug 2269: When presented with a received message having a stupidly large + number of DKIM-Signature headers, disable DKIM verification to avoid + a resource-consumption attack. The limit is set at twenty. -Since Exim version 4.90 ------------------------ +JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the + report of oldest_pass in ${authres } in consequence, and separate out + some descriptions of reasons for verification fail. + +JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage + files in the spool were present and unlocked. A queue-runner could spot + them, resulting in a duplicate delivery. Fix that by doing the unlock + after the unlink. Investigation by Tim Stewart. Take the opportunity to + add more error-checking on spoolfile handling while that code is being + messed with. + +PP/01 Refuse to open a spool data file (*-D) if it's a symlink. + No known attacks, no CVE, this is defensive hardening. + + +Exim version 4.91 +----------------- GF/01 DEFER rather than ERROR on redis cluster MOVED response. - When redis_servers is set to a list of > 1 element, and the Redis servers - in that list are in cluster configuration, convert the REDIS_REPLY_ERROR - case of MOVED into a DEFER case instead, thus moving the query onto the - next server in the list. For a cluster of N elements, all N servers must - be defined in redis_servers. + When redis_servers is set to a list of > 1 element, and the Redis servers + in that list are in cluster configuration, convert the REDIS_REPLY_ERROR + case of MOVED into a DEFER case instead, thus moving the query onto the + next server in the list. For a cluster of N elements, all N servers must + be defined in redis_servers. + +GF/02 Catch and remove uninitialized value warning in exiqsumm + Check for existence of @ARGV before looking at $ARGV[0] JH/01 Replace the store_release() internal interface with store_newblock(), which internalises the check required to safely use the old one, plus @@ -159,17 +176,73 @@ JH/28 Ensure that variables possibly set during message acceptance are marked dead before release of memory in the daemon loop. This stops complaints about them when the debug_store option is enabled. Discovered specifically for sender_rate_period, but applies to a whole set of variables. - Do the same for the queue-runner loop, for variables set from spool - message files. + Do the same for the queue-runner and queue-list loops, for variables set + from spool message files. Do the same for the SMTP per-message loop, for + certain variables indirectly set in ACL operations. -PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset, - tls_require_ciphers is used as before. +JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such + as a multi-recipient message from a mailinglist manager). The coding had + an arbitrary cutoff number of characters while checking for more input; + enforced by writing a NUL into the buffer. This corrupted long / fast + input. The problem was exposed more widely when more pipelineing of SMTP + responses was introduced, and one Exim system was feeding another. + The symptom is log complaints of SMTP syntax error (NUL chars) on the + receiving system, and refused recipients seen by the sending system + (propating to people being dropped from mailing lists). + Discovered and pinpointed by David Carter. + +JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being + replaced by the ${authresults } expansion. + +JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall. + +HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This + allows proper process termination in container environments. + +JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport. + Previously the "final dot" had a newline after it; ensure it is CR,LF. + +JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp" + and "err_perm", deprecated since 4.83 when the RFC-defined words + "temperror" and "permerror" were introduced. JH/34 Re-introduce enforcement of no cutthrough delivery on transports having transport-filters or DKIM-signing. The restriction was lost in the consolidation of verify-callout and delivery SMTP handling. Extend the restriction to also cover ARC-signing. +JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses) + in defer=pass mode supply a 450 to the initiator. Previously the message + would be spooled. + +PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset, + tls_require_ciphers is used as before. + +HS/03 Malware Avast: Better match the Avast multiline protocol. Add + "pass_unscanned". Only tmpfails from the scanner are written to + the paniclog, as they may require admin intervention (permission + denied, license issues). Other scanner errors (like decompression + bombs) do not cause a paniclog entry. + +JH/36 Fix reinitialisation of DKIM logging variable between messages. + Previously it was possible to log spurious information in receive log + lines. + +JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This + triggered odd behaviour from Outlook Express clients. + +PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public + suffix list. + +JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form, + since the IETF WG has not yet settled on that versus the original + "bare" representation. + +JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec. + Previously the millisecond value corrupted the output. + Fix also for syslog_pid=no and log_selector +pid, for which the pid + corrupted the output. + Exim version 4.90 -----------------