X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/f6ef9370d8ad193be6b0203aa85d52b40779242d..4804c62909a62a3ac12ec4777ebd48c541028965:/doc/doc-txt/ChangeLog diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index 6cd472434..541ebaf54 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -5,8 +5,71 @@ 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 4.89+fixes +----------------------- +Cherry-Picked from the master development branch +------------------------------------------------- + +HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369) + +JH/06 Default openssl_options to include +no_ticket, to reduce load on peers. + Disable the session-cache too, which might reduce our load. Since we + currrectly use a new context for every connection, both as server and + client, there is no benefit for these. + GnuTLS appears to not support tickets server-side by default (we don't + call gnutls_session_ticket_enable_server()) but client side is enabled + by default on recent versions (3.1.3 +) unless the PFS priority string + is used (3.2.4 +). + +JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously + the check for any unsuccessful recipients did not notice the limit, and + erroneously found still-pending ones. + +JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy- + compatible one, to avoid the (poorly documented) possibility of a config + file in the working directory redirecting the DB files, possibly correpting + some existing file. CVE-2017-10140 assigned for BDB. + +JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not + cache-hot. Previously, although the result was properly cached, the + initial verify call returned a defer. + +JH/21 Bug 2151 (partial): + Avoid using SIZE on the MAIL for a callout verify, on any but + the main verify for receipient in uncached-mode. + +JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly + the right size to place the terminating semicolon on its own folded + line, the header hash was calculated to an incorrect value thanks to + the (relaxed) space the fold became. + +JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process + which could crash as a result. This could lead to undeliverable messages. + +JH/15 Fix a crash in the smtp transport caused when two hosts in succession + are unsuable for non-message-specific reasons - eg. connection timeout, + banner-time rejection. + +JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This + matters on fast-turnover and PID-randomising systems, which were getting + out-of-order delivery. + +JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for + a possibly-overlapping copy. The symptom was that "Remote host closed + connection in response to HELO" was logged instead of the actual 4xx + error for the HELO. + +JH/34 Bug 2199: fix a use-after-free while reading smtp input for header lines. + A crafted sequence of BDAT commands could result in in-use memory beeing + freed. CVE-2017-16943. + +HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading + from SMTP input. Previously it was always done; now only done for DATA + and not BDAT commands. CVE-2017-16944. + + Exim version 4.89 -------------------- +----------------- JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules than -2003 did; needs libidn2 in addition to libidn. @@ -81,6 +144,38 @@ PP/04 Bug 2018: Also handle Proxy Protocol v2 safely. PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl +JH/16 Drop variables when they go out of scope. Memory management drops a whole + region in one operation, for speed, and this leaves assigned pointers + dangling. Add checks run only under the testsuite which checks all + variables at a store-reset and panics on a dangling pointer; add code + explicitly nulling out all the variables discovered. Fixes one known + bug: a transport crash, where a dangling pointer for $sending_ip_address + originally assigned in a verify callout, is re-used. + +PP/06 Drop '.' from @INC in various Perl scripts. + +PP/07 Switch FreeBSD iconv to always use the base-system libc functions. + +PP/08 Reduce a number of compilation warnings under clang; building with + CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses + should be warning-free. + +JH/17 Fix inbound CHUNKING when DKIM disabled at runtime. + +HS/01 Fix portability problems introduced by PP/08 for platforms where + realloc(NULL) is not equivalent to malloc() [SunOS et al]. + +HS/02 Bug 1974: Fix missing line terminator on the last received BDAT + chunk. This allows us to accept broken chunked messages. We need a more + general solution here. + +PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover + already-broken messages in the queue. + +JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value. + +JH/19 Fix reference counting bug in routing-generated-address tracking. + Exim version 4.88 -----------------