Last-minute updates for release notes.
Security: CVE-2022-2625
<listitem>
<!--
+Author: Tom Lane <tgl@sss.pgh.pa.us>
+Branch: master [b9b21acc7] 2022-08-08 11:12:31 -0400
+Branch: REL_15_STABLE [cc7e0feba] 2022-08-08 11:12:31 -0400
+Branch: REL_14_STABLE [5721da7e4] 2022-08-08 11:12:31 -0400
+Branch: REL_13_STABLE [7e92f78ab] 2022-08-08 11:12:31 -0400
+Branch: REL_12_STABLE [5579726bd] 2022-08-08 11:12:31 -0400
+Branch: REL_11_STABLE [f52d2fbd8] 2022-08-08 11:12:31 -0400
+Branch: REL_10_STABLE [5919bb5a5] 2022-08-08 11:12:31 -0400
+-->
+ <para>
+ Do not let extension scripts replace objects not already belonging
+ to the extension (Tom Lane)
+ </para>
+
+ <para>
+ This change prevents extension scripts from doing <command>CREATE
+ OR REPLACE</command> if there is an existing object that does not
+ belong to the extension. It also prevents <command>CREATE IF NOT
+ EXISTS</command> in the same situation. This prevents a form of
+ trojan-horse attack in which a hostile database user could become
+ the owner of an extension object and then modify it to compromise
+ future uses of the object by other users. As a side benefit, it
+ also reduces the risk of accidentally replacing objects one did
+ not mean to.
+ </para>
+
+ <para>
+ The <productname>PostgreSQL</productname> Project thanks
+ Sven Klemm for reporting this problem.
+ (CVE-2022-2625)
+ </para>
+ </listitem>
+
+ <listitem>
+<!--
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Branch: master [9e4f914b5] 2022-07-28 08:40:06 +0200
Branch: REL_15_STABLE [8348413db] 2022-07-28 08:26:05 +0200
