Last-minute updates for release notes.

Security: CVE-2018-1115

Author: tglsfdc

doc/src/sgml/release-9.6.sgml

@@ -23,9 +23,14 @@
    </para>
 
    <para>
-    However, if the function marking mistakes mentioned in the first two
-    changelog entries below affect you, you will want to take steps to
-    correct your database catalogs.
+    However, if you use the <filename>adminpack</filename> extension,
+    you should update it as per the first changelog entry below.
+   </para>
+
+   <para>
+    Also, if the function marking mistakes mentioned in the second and
+    third changelog entries below affect you, you will want to take steps
+    to correct your database catalogs.
    </para>
 
    <para>
@@ -39,6 +44,33 @@
 
    <itemizedlist>
 
+    <listitem>
+     <para>
+      Remove public execute privilege
+      from <filename>contrib/adminpack</filename>'s
+      <function>pg_logfile_rotate()</function> function (Stephen Frost)
+     </para>
+
+     <para>
+      <function>pg_logfile_rotate()</function> is a deprecated wrapper
+      for the core function <function>pg_rotate_logfile()</function>.
+      When that function was changed to rely on SQL privileges for access
+      control rather than a hard-coded superuser
+      check, <function>pg_logfile_rotate()</function> should have been
+      updated as well, but the need for this was missed.  Hence,
+      if <filename>adminpack</filename> is installed, any user could
+      request a logfile rotation, creating a minor security issue.
+     </para>
+
+     <para>
+      After installing this update, administrators should
+      update <filename>adminpack</filename> by performing
+      <literal>ALTER EXTENSION adminpack UPDATE</literal> in each
+      database in which <filename>adminpack</filename> is installed.
+      (CVE-2018-1115)
+     </para>
+    </listitem>
+
     <listitem>
      <para>
       Fix incorrect volatility markings on a few built-in functions