-$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.44 2004/12/20 11:46:21 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.70 2005/01/13 16:15:52 ph10 Exp $
Change log file for Exim from version 4.21
-------------------------------------------
just the host names, not the priorities.
(3) It is now possible to give a list of domains (or IP addresses) to be
- looked up.
+ looked up. The behaviour when one of the lookups defers can be
+ controlled by a keyword.
(4) It is now possible to specify the separator character for use when
multiple records are returned.
46. Reset the locale to "C" after calling embedded Perl, in case it was changed
(this can affect the format of dates).
+47. exim_tidydb, when checking for the continued existence of a message for
+ which it has found a message-specific retry record, was not finding
+ messages that were in split spool directories. Consequently, it was
+ deleting retry records that should have stayed in existence.
+
+48. Steve fixed some bugs in eximstats.
+
+49. The SPA authentication driver was not abandoning authentication and moving
+ on to the next authenticator when an expansion was forced to fail,
+ contradicting the general specification for all authenticators. Instead it
+ was generating a temporary error. It now behaves as specified.
+
+50. The default ordering of permitted cipher suites for GnuTLS was pessimal
+ (the order specifies the preference for clients). The order is now AES256,
+ AES128, 3DES, ARCFOUR128.
+
+51. Small patch to Sieve code - explicitly set From: when generating an
+ autoreply.
+
+52. Exim crashed if a remote delivery caused a very long error message to be
+ recorded - for instance if somebody sent an entire SpamAssassin report back
+ as a large number of 550 error lines. This bug was coincidentally fixed by
+ increasing the size of one of Exim's internal buffers (big_buffer) that
+ happened as part of the Exiscan merge. However, to be on the safe side, I
+ have made the code more robust (and fixed the comments that describe what
+ is going on).
+
+53. Now that there can be additional text after "Completed" in log lines (if
+ the queue_time_overall log selector is set), a one-byte patch to exigrep
+ was needed to allow it to recognize "Completed" as not the last thing in
+ the line.
+
+54. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
+ patch that reportedly fixes this has been added. I am not expert enough to
+ create a test for it. This is what the patch creator wrote:
+
+ "I found a little strange behaviour of ldap code when working with
+ Windows 2003 AD Domain, where users was placed in more than one
+ Organization Units. When I tried to give exim partial DN, the exit code
+ of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
+ But simultaneously result of request was absolutely normal ldap result,
+ so I produce this patch..."
+
+ Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
+ REFERENCE, so I have modified the code to exclude the patch when that macro
+ is not defined.
+
+55. Some experimental protocols are using DNS PTR records for new purposes. The
+ keys for these records are domain names, not reversed IP addresses. The
+ dnsdb PTR lookup now tests whether its key is an IP address. If not, it
+ leaves it alone. Component reversal etc. now happens only for IP addresses.
+
+56. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
+
+57. Double the size of the debug message buffer (to 2048) so that more of very
+ long debug lines gets shown.
+
+58. The exicyclog utility now does better if the number of log files to keep
+ exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
+
+59. Two changes related to the smtp_active_hostname option:
+
+ (1) $smtp_active_hostname is now available as a variable.
+ (2) The default for smtp_banner uses $smtp_active_hostname instead
+ of $primary_hostname.
+
+60. The host_aton() function is supposed to be passed a string that is known
+ to be a valid IP address. However, in the case of IPv6 addresses, it was
+ not checking this. This is a hostage to fortune. Exim now panics and dies
+ if the condition is not met. A case was found where this could be provoked
+ from a dnsdb PTR lookup with an IPv6 address that had more than 8
+ components; fortuitously, this particular loophole had already been fixed
+ by change 4.50/55 above.
+
+ If there are any other similar loopholes, the new check in host_aton()
+ itself should stop them being exploited. The report I received stated that
+ data on the command line could provoke the exploit when Exim was running as
+ exim, but did not say which command line option was involved. All I could
+ find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
+ running as the user.
+
+61. There was a buffer overflow vulnerability in the SPA authentication code
+ (which came originally from the Samba project). I have added a test to the
+ spa_base64_to_bits() function which I hope fixes it.
+
+62. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
+ os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
+
+63. The daemon start-up calls getloadavg() while still root for those OS that
+ need the first call to be done as root, but it missed one case: when
+ deliver_queue_load_max is set with deliver_drop_privilege. This is
+ necessary for the benefit of the queue runner, because there is no re-exec
+ when deliver_drop_privilege is set.
+
+64. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
+ This has been fixed.
+
+65. Caching of lookup data for "hosts =" ACL conditions, when a named host list
+ was in use, was not putting the data itself into the right store pool;
+ consequently, it could be overwritten for a subsequent message in the same
+ SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
+ the caching.)
+
+66. Added hosts_max_try_hardlimit to the smtp transport, default 50.
+
+67. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
+ address", "IPv4 address", and "IPv6 address", respectively. Some calls of
+ the function were treating the return as a boolean value, which happened to
+ work because 0=false and not-0=true, but is not correct code.
+
+68. The host_aton() function was not handling scoped IPv6 addresses (those
+ with, for example, "%eth0" on the end) correctly.
+
+69. Fixed some compiler warnings in acl.c for the bitmaps specified with
+ negated items (that is, ~something) in unsigned ints. Some compilers
+ apparently mutter when there is no cast.
+
+70. If an address verification called from an ACL failed, and did not produce a
+ user-specific message (i.e. there was only a "system" message), nothing was
+ put in $acl_verify_message. In this situation, it now puts the system
+ message there.
+
+71. Change 4.23/11 added synchronization checking at the start of an SMTP
+ session; change 4.31/43 added the unwanted input to the log line - except
+ that it did not do this in the start of session case. It now does.
+
Exim version 4.43
-----------------
git://git.exim.org / users / jgh / exim.git / blobdiff