X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/beb5d85c7d378d48dda18a3ad8fab0599a75edc1..518f0a0dd6df6f0d0ea51bfa126982d134e7a7ff:/doc/doc-txt/ChangeLog diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index 754ae7b49..9837d6c0f 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -198,7 +198,95 @@ JH/41 Fix daemon SIGHUP on FreeBSD. Previously, a named socket for IPC was This affected any platform not supporting "abstract" Unix-domain sockets (i.e. not Linux). +JH/42 Bug 2693: Harden against a peer which reneges on a 452 "too many + recipients" response to RCPT in a later response, with a 250. The + previous coding assumed this would not happen, and under PIPELINING + would result in both lost and duplicate recipients for a message. +JH/43 Bug 2694: Fix weighted distribution of work to multiple spamd servers. + Previously the weighting was incorrectly applied. Similar fix for socks + proxies. Found and fixed by Heiko Schlichting. + +JH/44 Bug 2701: Fix list-expansion of dns_ipv4_lookup. Previously, it did + not handle sub-lists included using the +namedlist syntax. While + investigating, the same found for dns_trust_aa, dns_again_means_nonexist, + dnssec_require_domains, dnssec_request_domains, srv_fail_domains, + mx_fail_domains. + +JH/45 Use a (new) separate store pool-pair for DKIM verify working data. + Previously the permanent pool was used, so the sore could not be freed. + This meant a connection with many messages would use continually-growing + memory. + +JH/46 Use an exponentially-increasing block size when malloc'ing store. Do it + per-pool so as not to waste too much space. Previously a constant size + was used which resulted in O(n^2) behaviour; now we get O(n log n) making + DOS attacks harder. The cost is wasted memory use in the larger blocks. + +JH/47 Use explicit alloc/free for DNS lookup workspace. This permits using the + same space repeatedly, and a smaller process footprint. + +JH/48 Use a less bogus-looking filename for a temporary used for DH-parameters + for GnuTLS. Previously the name started "%s" which, while not a bug, + looked as if if might be one. + +JH/49 Bug 2710: when using SOCKS for additional messages after the first (a + "continued connection") make the $proxy_* variables available. Previously + the information was not passed across the exec() call for subsequent + transport executions. This also mean that the log lines for the + messages can show the proxy information. + +JH/50 Bug 2672: QT elements in log lines, unless disabled, now exclude the + receive time. With modern systems the difference is significant. + The historical behaviour can be restored by disabling (a new) log_selector + "queue_time_exclusive". + +JH/51 Taint-check ACL line. Previously, only filenames (for out-of-line ACL + content) were specifically tested for. Now, also cover epxansions + rerulting in acl names and inline ACL content. + +JH/52 Fix ${ip6norm:} operator. Previously, any trailing line text was dropped, + making it unusable in complex expressions. + +JH/53 Bug 2743: fix immediate-delivery via named queue. Previously this would + fail with a taint-check on the spoolfile name, and leave the message + queued. + +HS/01 Enforce absolute PID file path name. + +HS/02 Handle SIGINT as we handle SIGTERM: terminate the Exim process. + +PP/01 Add a too-many-bad-recipients guard to the default config's RCPT ACL. + +PP/02 Bug 2643: Correct TLS DH constants. + A missing NUL termination in our code-generation tool had led to some + incorrect Diffie-Hellman constants in the Exim source. + Reported by kylon94, code-gen tool fix by Simon Arlott. + +PP/03 Impose security length checks on various command-line options. + Fixes CVE-2020-SPRSS reported by Qualys. + +PP/04 Fix Linux security issue CVE-2020-SLCWD and guard against PATH_MAX + better. Reported by Qualys. + +PP/05 Fix security issue CVE-2020-PFPSN and guard against cmdline invoker + providing a particularly obnoxious sender full name. + Reported by Qualys. + +PP/06 Fix CVE-2020-28016 (PFPZA): Heap out-of-bounds write in parse_fix_phrase() + +PP/07 Refuse to allocate too little memory, block negative/zero allocations. + Security guard. + +PP/08 Change default for recipients_max from unlimited to 50,000. + +PP/09 Fix security issue with too many recipients on a message (to remove a + known security problem if someone does set recipients_max to unlimited, + or if local additions add to the recipient list). + Fixes CVE-2020-RCPTL reported by Qualys. + +PP/10 Fix security issue in SMTP verb option parsing + Fixes CVE-2020-EXOPT reported by Qualys. Exim version 4.94