X-Git-Url: https://git.exim.org/users/heiko/exim.git/blobdiff_plain/2d07a2158e07fbaddd52e734fcbaeff44bf61919..0b56b50791f84fca479ad9bb9b0ce789959e3a2e:/doc/doc-txt/ChangeLog diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index 9fb00a707..2dfd7d347 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -1,6 +1,296 @@ Change log file for Exim from version 4.21 ------------------------------------------- + +Exim version 4.86 +----------------- +JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now + expanded. + +JH/02 The smtp transport option "multi_domain" is now expanded. + +JH/03 The smtp transport now requests PRDR by default, if the server offers + it. + +JH/04 Certificate name checking on server certificates, when exim is a client, + is now done by default. The transport option tls_verify_cert_hostname + can be used to disable this per-host. The build option + EXPERIMENTAL_CERTNAMES is withdrawn. + +JH/05 The value of the tls_verify_certificates smtp transport and main options + default to the word "system" to access the system default CA bundle. + For GnuTLS, only version 3.0.20 or later. + +JH/06 Verification of the server certificate for a TLS connection is now tried + (but not required) by default. The verification status is now logged by + default, for both outbound TLS and client-certificate supplying inbound + TLS connections + +JH/07 Changed the default rfc1413 lookup settings to disable calls. Few + sites use this now. + +JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery + Status Notification (bounce) messages are now MIME format per RFC 3464. + Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised + under the control of the dsn_advertise_hosts option, and routers may + have a dsn_lasthop option. + +JH/09 A timeout of 2 minutes is now applied to all malware scanner types by + default, modifiable by a malware= option. The list separator for + the options can now be changed in the usual way. + + + +Exim version 4.85 +----------------- +TL/01 When running the test suite, the README says that variables such as + no_msglog_check are global and can be placed anywhere in a specific + test's script, however it was observed that placement needed to be near + the beginning for it to behave that way. Changed the runtest perl + script to read through the entire script once to detect and set these + variables, reset to the beginning of the script, and then run through + the script parsing/test process like normal. + +TL/02 The BSD's have an arc4random API. One of the functions to induce + adding randomness was arc4random_stir(), but it has been removed in + OpenBSD 5.5. Detect this OpenBSD version and skip calling this + function when detected. + +JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now + cause callback expansion. + +TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that + syntax errors in an expansion can be treated as a string instead of + logging or causing an error, due to the internal use of bool_lax + instead of bool when processing it. + +JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for + server certificates when making smtp deliveries. + +JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups. + +JH/04 Add ${sort {list}{condition}{extractor}} expansion item. + +TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep. + +TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups. + Merged patch from Sebastian Wiedenroth. + +JH/05 Fix results-pipe from transport process. Several recipients, combined + with certificate use, exposed issues where response data items split + over buffer boundaries were not parsed properly. This eventually + resulted in duplicates being sent. This issue only became common enough + to notice due to the introduction of conection certificate information, + the item size being so much larger. Found and fixed by Wolfgang Breyha. + +JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed + size buffer was used, resulting in syntax errors when an expansion + exceeded it. + +JH/07 Add support for directories of certificates when compiled with a GnuTLS + version 3.3.6 or later. + +JH/08 Rename the TPDA expermimental facility to Event Actions. The #ifdef + is EXPERIMENTAL_EVENT, the main-configuration and transport options + both become "event_action", the variables become $event_name, $event_data + and $event_defer_errno. There is a new variable $verify_mode, usable in + routers, transports and related events. The tls:cert event is now also + raised for inbound connections, if the main configuration event_action + option is defined. + +TL/06 In test suite, disable OCSP for old versions of openssl which contained + early OCSP support, but no stapling (appears to be less than 1.0.0). + +JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on + server certificate names available under the smtp transport option + "tls_verify_cert_hostname" now do not permit multi-component wildcard + matches. + +JH/10 Time-related extraction expansions from certificates now use the main + option "timezone" setting for output formatting, and are consistent + between OpenSSL and GnuTLS compilations. Bug 1541. + +JH/11 Fix a crash in mime ACL when meeting a zero-length parameter in the + incoming message. + +JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now + include certificate info, eximon was claiming there were spoolfile + syntax errors. + +JH/13 Buf 1521: Fix ldap lookup for single-attr request, multiple-attr return. + +JH/14 Log delivery-related information more consistently, using the sequence + "H= []" wherever possible. + + +Exim version 4.84 +----------------- +TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static + checkers that were complaining about end of non-void function with no + return. + +JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers. + This was a regression intruduced in 4.83 by another bugfix. + +JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled. + +TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when + EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha. + + +Exim version 4.83 +----------------- + +TF/01 Correctly close the server side of TLS when forking for delivery. + + When a message was received over SMTP with TLS, Exim failed to clear up + the incoming connection properly after forking off the child process to + deliver the message. In some situations the subsequent outgoing + delivery connection happened to have the same fd number as the incoming + connection previously had. Exim would try to use TLS and fail, logging + a "Bad file descriptor" error. + +TF/02 Portability fix for building lookup modules on Solaris when the xpg4 + utilities have not been installed. + +JH/01 Fix memory-handling in use of acl as a conditional; avoid free of + temporary space as the ACL may create new global variables. + +TL/01 LDAP support uses per connection or global context settings, depending + upon the detected version of the libraries at build time. + +TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection + to extract and use the src ip:port in logging and expansions as if it + were a direct connection from the outside internet. PPv2 support was + updated based on HAProxy spec change in May 2014. + +JH/02 Add ${listextract {number}{list}{success}{fail}}. + +TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents. + Properly escape header and check for NULL return. + +PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok + not dns_use_dnssec. + +JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp. + +TL/04 Add verify = header_names_ascii check to reject email with non-ASCII + characters in header names, implemented as a verify condition. + Contributed by Michael Fischer v. Mollard. + +TL/05 Rename SPF condition results err_perm and err_temp to standardized + results permerror and temperror. Previous values are deprecated but + still accepted. In a future release, err_perm and err_temp will be + completely removed, which will be a backward incompatibility if the + ACL tests for either of these two old results. Patch contributed by + user bes-internal on the mailing list. + +JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau. + +JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log + selectors, in both main and reject logs. + +JH/06 Log outbound-TLS and port details, subject to log selectors, for a + failed delivery. + +JH/07 Add malware type "sock" for talking to simple daemon. + +JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport. + +JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in + routers/transports under cutthrough routing. + +JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative + numbers. Touch up "bool" conditional to keep the same definition. + +TL/06 Remove duplicated language in spec file from 4.82 TL/16. + +JH/11 Add dnsdb tlsa lookup. From Todd Lyons. + +JH/12 Expand items in router/transport headers_add or headers_remove lists + individually rather than the list as a whole. Bug 1452. + + Required for reasonable handling of multiple headers_ options when + they may be empty; requires that headers_remove items with embedded + colons must have them doubled (or the list-separator changed). + +TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly + view the policy declared in the DMARC record. Currently, $dmarc_status + is a combined value of both the record presence and the result of the + analysis. + +JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455. + +JH/14 New options dnssec_request_domains, dnssec_require_domains on the + dnslookup router and the smtp transport (applying to the forward + lookup). + +TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list + of ldap servers used for a specific lookup. Patch provided by Heiko + Schlichting. + +JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups. + New variable $lookup_dnssec_authenticated for observability. + +TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use. + Patch submitted by Lars Timman. + +JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459. + +TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim. + Requires trusted mode and valid format message id, aborts otherwise. + Patch contributed by Heiko Schlichting. + +JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item + certextract with support for various fields. Bug 1358. + +JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling + is requested by default, modifiable by smtp transport option + hosts_request_ocsp. + +JH/22 Expansion operators ${md5:string} and ${sha1:string} can now + operate on certificate variables to give certificate fingerprints + Also new ${sha256:cert_variable}. + +JH/23 The PRDR feature is moved from being Experimental into the mainline. + +TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from + Christian Aistleitner. + +JH/24 The OCSP stapling feature is moved from Experimental into the mainline. + +TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool + file. Patch from Wolfgang Breyha. + +JH/25 Expand the coverage of the delivery $host and $host_address to + client authenticators run in verify callout. Bug 1476. + +JH/26 Port service names are now accepted for tls_on_connect_ports, to + align with daemon_smtp_ports. Bug 72. + +TF/03 Fix udpsend. The ip_connectedsocket() function's socket type + support and error reporting did not work properly. + +TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists + and is readable. Patch from Andrew Colin Kissa. + +TL/14 Enhance documentation of ${run expansion and how it parses the + commandline after expansion, particularly in the case when an + unquoted variable expansion results in an empty value. + +JH/27 The TLS SNI feature was broken in 4.82. Fix it. + +PP/02 Fix internal collision of T_APL on systems which support RFC3123 + by renaming away from it. Addresses GH issue 15, reported by + Jasper Wallace. + +JH/28 Fix parsing of MIME headers for parameters with quoted semicolons. + +TL/15 SECURITY: prevent double expansion in math comparison functions + (can expand unsanitized data). Not remotely exploitable. + CVE-2014-2972 + + Exim version 4.82 ----------------- @@ -60,7 +350,9 @@ NM/01 Bugzilla 1197 - Spec typo JH/03 Add expansion operators ${listnamed:name} and ${listcount:string} -PP/09 Add gnutls_enable_pkcs11 option. +PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called + gnutls_enable_pkcs11, but renamed to more accurately indicate its + function. PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC. Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler. @@ -87,6 +379,7 @@ JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line. PP/11 SECURITY: protect DKIM DNS decoding from remote exploit. CVE-2012-5671 + (nb: this is the same fix as in Exim 4.80.1) JH/11 Add A= logging on delivery lines, and a client_set_id option on authenticators. @@ -196,6 +489,8 @@ PP/20 Added force_command boolean option to pipe transport. JH/15 AUTH support on callouts (and hence cutthrough-deliveries). Bugzilla 321, 823. +TF/04 Added udpsend ACL modifer and hexquote expansion operator + PP/21 Fix eximon continuous updating with timestamped log-files. Broken in a format-string cleanup in 4.80, missed when I repaired the other false fix of the same issue. @@ -220,6 +515,45 @@ JH/16 Fix comparisons for 64b. Bugzilla 1385. TL/09 Add expansion variable $authenticated_fail_id to keep track of last id that failed so it may be referenced in subsequent ACL's. +TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by + Alexander Miroch. + +TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls + ldap library initialization, allowing self-signed CA's to be + used. Also properly sets require_cert option later in code by + using NULL (global ldap config) instead of ldap handle (per + session). Bug diagnosis and testing by alxgomz. + +TL/12 Enhanced documentation in the ratelimit.pl script provided in + the src/util/ subdirectory. + +TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau + renamed to Transport Post Delivery Action by Jeremy Harris, as + EXPERIMENTAL_TPDA. + +TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled + when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable + redis_servers = needs to be configured which will be used by the redis + lookup. Patch from Warren Baker, of The Packet Hub. + +TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall. + +TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a + hostname or reverse DNS when processing a host list. Used suggestions + from multiple comments on this bug. + +TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey. + +TL/18 Had previously added a -CONTINUE option to runtest in the test suite. + Missed a few lines, added it to make the runtest require no keyboard + interaction. + +TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite + contains upper case chars. Make router use caseful_local_part. + +TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS + support when GnuTLS has been built with p11-kit. + Exim version 4.80.1 -------------------