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Accepted postgresql-11 11.20-0+deb10u1 (source) into oldstable



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Format: 1.8
Date: Wed, 10 May 2023 21:04:02 +0200
Source: postgresql-11
Architecture: source
Version: 11.20-0+deb10u1
Distribution: buster-security
Urgency: medium
Maintainer: Debian PostgreSQL Maintainers <team+postgresql@tracker.debian.org>
Changed-By: Christoph Berg <myon@debian.org>
Changes:
 postgresql-11 (11.20-0+deb10u1) buster-security; urgency=medium
 .
   * New upstream version.
 .
     + Prevent CREATE SCHEMA from defeating changes in search_path
       (Report and fix by Alexander Lakhin, CVE-2023-2454)
 .
       Within a CREATE SCHEMA command, objects in the prevailing search_path,
       as well as those in the newly-created schema, would be visible even
       within a called function or script that attempted to set a secure
       search_path.  This could allow any user having permission to create a
       schema to hijack the privileges of a security definer function or
       extension script.
 .
     + Enforce row-level security policies correctly after inlining a
       set-returning function (Report by Wolfgang Walther, CVE-2023-2455)
 .
       If a set-returning SQL-language function refers to a table having
       row-level security policies, and it can be inlined into a calling query,
       those RLS policies would not get enforced properly in some cases
       involving re-using a cached plan under a different role. This could
       allow a user to see or modify rows that should have been invisible.
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