X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/36b600bb776d082be8cdd15c18daed3c29cfda7f..f1e494e0021f2efbc346a24727b8ebc66733e4b2:/doc/doc-txt/ChangeLog diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index be07ba625..60627364d 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -3,6 +3,96 @@ affect Exim's operation, with an unchanged configuration file. For new options, and new features, see the NewStuff file next to this ChangeLog. +Exim version 4.95 +----------------- + +JH/01 Bug 1329: Fix format of Maildir-format filenames to match other mail- + related applications. Previously an "H" was used where available info + says that "M" should be, so change to match. + +JH/02 Bug 2587: Fix pam expansion condition. Tainted values are commonly used + as arguments, so an implementation trying to copy these into a local + buffer was taking a taint-enforcement trap. Fix by using dynamically + created buffers. Similar fix for radius expansion condition. + +JH/03 Bug 2586: Fix listcount expansion operator. Using tainted arguments is + reasonable, eg. to count headers. Fix by using dynamically created + buffers rather than a local. Do similar fixes for ACL actions "dcc", + "log_reject_target", "malware" and "spam"; the arguments are expanded + so could be handling tainted values. + +JH/04 Bug 2590: Fix -bi (newaliases). A previous code rearrangement had + broken the (no-op) support for this sendmail command. Restore it + to doing nothing, silently, and returning good status. + +JH/05 Bug 2593: Fix "vacation" in Exim filter. Previously, when a "once" + record path was given (or the default used) without a leading directory + path, an error occurred on trying to open it. Use the transport's working + directory. + +JH/06 Bug 2594: Change the name used for certificate name checks in the smtp + transport. Previously it was the name on the DNS A-record; use instead + the head of the CNAME chain leading there (if there is one). This seems + to align better with RFC 6125. + +JH/07 Bug 2597: Fix a resource leak. Using a lookup in obtaining a value for + smtp_accept_max_per_host allocated resources which were not released + when the limit was exceeded. This eventually crashed the daemon. Fix + by adding a relase action in that path. + +JH/08 Bug 2598: Fix verify ACL condition. The options for the condition are + expanded; previously using tainted values was rejected. Fix by using + dynamically-created buffers. + +JH/09 Relax restrictions on ACL verify condition needing access to message + headers. Previously they were only permitted in data and non-smtp ACLs; + permit also mime, dkim, prdr quit and notquit. Applies to header-syntax, + not_blind, header_sender and header_names_ascii verification. + +JH/10 Bug 2603: Fix coding of string copying to only evaluate arguments once. + Previously a macro used one argument twice; when called with the + argument as an expression having side-effects, incorrect operation + resulted. Use an inlineable function. + +JH/11 Bug 2604: Fix request to cutthrough-deliver when a connection is already + held open for a verify callout. Previously this wan not accounted for + and a corrupt onward SMTP conversation resulted. + +JH/12 Bug 2607: Fix the ${srs_encode } expansion to handle quoted local_parts. + Previously they were embedded naively in the constructed address; when + needed, strip the quoting and quote the entire local_part. + Also make the inbound_srs expansion condition handle quoting. + +JH/13 Fix dsearch "subdir" filter to ignore ".". Previously only ".." was + excluded, not matching the documentation. + +JH/14 Bug 2606: Fix a segfault in sqlite lookups. When no, or a bad, filename + was given for the sqlite_dbfile a trap resulted. + +JH/15 Bug 2620: Fix "spam" ACL condition. Previously, tainted values for the + "name" argument resulted in a trap. There is no reason to disallow such; + this was a coding error. + +JH/16 Bug 2615: Fix pause during message reception, on systems that have been + suspended/resumed. The Linux CLOCK_MONOTONIC does not account for time + spent suspended, ignoring the Posix definition. Previously we assumed + it did and a constant offset from real time could be used as a correction. + Change to using the same clock source for the start-of-message and the + post-message next-tick-wait. Also change to using CLOCK_BOOTTIME if it + exists, just to get a clock slightly more aligned to reality. + +JH/17 Bug 2295: Fix DKIM signing to always semicolon-terminate. Although the + RFC says it is optional some validators care. The missing char was not + intended but triggered by a line-wrap alignement. Discovery and fix by + Guillaume Outters, hacked on by JH. + +JH/18 Bug 2617: Fix a taint trap in parse_fix_phrase(). Previously when the + name being quoted was tainted a trap would be taken. Fix by using + dynamicaly created buffers. The routine could have been called by a + rewrite with the "h" flag, by using the "-F" command-line option, or + by using a "name=" option on a control=submission ACL modifier. + + Exim version 4.94 ----------------- @@ -93,6 +183,7 @@ JH/20 Taint checking: disallow use of tainted data for - the autoreply transport file, log and once options - file names used by the redirect router (including filter files) - named-queue names + - paths used by single-key lookups Previously this was permitted. JH/21 Bug 2501: Fix init call in the heimdal authenticator. Previously it @@ -156,6 +247,56 @@ JH/33 Fix the dsearch lookup to return an untainted result. Previously the taint of the lookup key was maintained; we now regard the presence in the filesystem as sufficient validation. +JH/34 Fix the readsocket expansion to not segfault when an empty "options" + argument is supplied. + +JH/35 The dsearch lookup now requires that the directory is an absolute path. + Previously this was not checked, and nonempty relative paths made an + access under Exim's current working directory. + +JH/36 Bug 2554: Fix msg:defer event for the hosts_max_try_hardlimit case. + Previously no event was raised. + +JH/37 Bug 2552: Fix the check on spool space during reception to use the SIZE + parameter supplied by the sender MAIL FROM command. Previously it was + ignored, and only the check_spool_space option value for the required + leeway checked. + +JH/38 Fix $dkim_key_length. This should, after a DKIM verification, present + the size of the signing public-key. Previously it was instead giving + the size of the signature hash. + +JH/39 DKIM verification: the RFC 8301 restriction on sizes of RSA keys is now + the default. See the (new) dkim_verify_min_keysizes option. + +JH/40 Fix a memory-handling bug: when a connection carried multiple messages + and an ACL use a lookup for checking either the local_part or domain, + stale data could be accessed. Ensure that variable references are + dropped between messages. + +JH/41 Bug 2571: Fix SPA authenticator. Running as a server, an offset supplied + by the client was not checked as pointing within response data before + being used. A malicious client could thus cause an out-of-bounds read and + possibly gain authentication. Fix by adding the check. + +JH/42 Internationalisation: change the default for downconversion in the smtp + transport to be "if needed". Previously it was "as previously set" for + the message, which usually meant "if needed" for message-submission but + "no" for everything else. However, MTAs have been seen using SMTPUTF8 + even when the envelope addresses did not need it, resulting in forwarding + failures to non-supporting MTAs. A downconvert in such cases will be + a no-op on the addresses, merely dropping the use of SMTPUTF8 by the + transport. The change does mean that addresses needing conversion will + be converted when previously a delivery failure would occur. + +JH/43 Fix possible long line in DSN. Previously when a very long SMTP error + response was received it would be used unchecked in a fail-DSN, violating + standards on line-length limits. Truncate if needed. + +HS/01 Remove parameters of the link to www.open-spf.org. The linked form + doesn't work. (Additionally add a new main config option to configure the + spf_smtp_comment) + Exim version 4.93 ----------------- @@ -256,7 +397,7 @@ JH/20 Bug 2389: fix server advertising of usable certificates, under GnuTLS in JH/21 The smtp transport option "hosts_noproxy_tls" is now unset by default. A single TCP connection by a client will now hold a TLS connection open - for multiple message deliveries, by default. Previoud the default was to + for multiple message deliveries, by default. Previously the default was to not do so. JH/22 The smtp transport option "hosts_try_dane" now enables all hosts by