Taint: reject or log more tainted list metadata elements

[exim.git] / doc / doc-txt / ChangeLog

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index bd4fd192189472cb82448b14ec7d61c13cd8437b..37cc3b77dfd2b6bff2cb401e5de909b78128d09e 100644 (file)
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -67,6 +67,19 @@ JH/14 Bug 3116: Fix crash in dkim signing.  On kernels supporting immutable
       memory segments, a write was done into one when a constant string was
       configured for a transport's dkim private key.
 
+JH/15 Disallow tainted metadata in lists.
+      - Change-of-separator prefixes are handled specially when they are
+      explicit text; only the remainder of the list is expanded. A change-of-
+      separator resulting from expansion will not take effect if tainted.
+      - Elements starting with a plus-sign (named-list inclusion,
+      case-interpretation etc) and (hostlist) @[] (et al) are not handled
+      specially and are still operative at this time - but warnings are logged;
+      if any of these are needed in a list with a tainted element (which taints
+      the entire list at string-expansion time) then a named-list can be used
+      for that element.
+      - Exclamation-marks ("!" signifying negation) are not checked for taint
+      at this time.
+
 Exim version 4.98
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