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Last-minute updates for release notes.

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Security: CVE-2019-10208, CVE-2019-10209
This commit is contained in:
Tom Lane 2019-08-05 11:49:14 -04:00
parent a034418cfc
commit d03c041334
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doc/src/sgml/release-11.sgml
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@ -35,6 +35,62 @@
<listitem>
<!--
Author: Noah Misch <noah@leadboat.com>
Branch: master [ffa2d37e5] 2019-08-05 07:48:41 -0700
Branch: REL_12_STABLE [9993fa9dd] 2019-08-05 07:48:45 -0700
Branch: REL_11_STABLE [21f94c51f] 2019-08-05 07:48:45 -0700
Branch: REL_10_STABLE [2062007cb] 2019-08-05 07:48:45 -0700
Branch: REL9_6_STABLE [7da46192d] 2019-08-05 07:48:45 -0700
Branch: REL9_5_STABLE [752fa3dbf] 2019-08-05 07:48:45 -0700
Branch: REL9_4_STABLE [86737438b] 2019-08-05 07:48:46 -0700
-->
<para>
Require schema qualification to cast to a temporary type when using
functional cast syntax (Noah Misch)
</para>
<para>
We have long required invocations of temporary functions to
explicitly specify the temporary schema, that
is <literal>pg_temp.<replaceable>func_name</replaceable>(<replaceable>args</replaceable>)</literal>.
Require this as well for casting to temporary types using functional
notation, for
example <literal>pg_temp.<replaceable>type_name</replaceable>(<replaceable>arg</replaceable>)</literal>.
Otherwise it's possible to capture a function call using a temporary
object, allowing privilege escalation in much the same ways that we
blocked in CVE-2007-2138.
(CVE-2019-10208)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [4766dce0d] 2019-08-05 11:20:31 -0400
Branch: REL_12_STABLE [de4b75c15] 2019-08-05 11:20:33 -0400
Branch: REL_11_STABLE [a034418cf] 2019-08-05 11:20:34 -0400
-->
<para>
Fix execution of hashed subplans that require cross-type comparison
(Tom Lane, Andreas Seltenreich)
</para>
<para>
Hashed subplans used the outer query's original comparison operator
to compare entries of the hash table. This is the wrong thing if
that operator is cross-type, since all the hash table entries will
be of the subquery's output type. For the set of hashable
cross-type operators in core <productname>PostgreSQL</productname>,
this mistake seems nearly harmless on 64-bit machines, but it can
result in crashes or perhaps unauthorized disclosure of server
memory on 32-bit machines. Extensions might provide hashable
cross-type operators that create larger risks.
(CVE-2019-10209)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master Release: REL_12_BR [f946a4091] 2019-06-24 16:43:21 -0400
Branch: REL_11_STABLE [afaf48afb] 2019-06-24 16:43:05 -0400