Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nz261-0000HB-57 for pgsql-hackers@arkaria.postgresql.org; Wed, 08 Jun 2022 20:16:05 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1nz25z-00077j-Ro for pgsql-hackers@arkaria.postgresql.org; Wed, 08 Jun 2022 20:16:03 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nz25z-00077S-IK for pgsql-hackers@lists.postgresql.org; Wed, 08 Jun 2022 20:16:03 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nz25w-0001B2-Py for pgsql-hackers@lists.postgresql.org; Wed, 08 Jun 2022 20:16:03 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 258KFlqs1740805; Wed, 8 Jun 2022 16:15:47 -0400 From: Tom Lane To: Roberto =?iso-8859-1?Q?C=2E_S=E1nchez?= cc: pgsql-hackers@lists.postgresql.org Subject: Re: Request for assistance to backport CVE-2022-1552 fixes to 9.6 and 9.4 In-reply-to: References: Comments: In-reply-to Roberto =?iso-8859-1?Q?C=2E_S=E1nchez?= message dated "Wed, 08 Jun 2022 12:04:04 -0400" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1740803.1654719347.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Wed, 08 Jun 2022 16:15:47 -0400 Message-ID: <1740804.1654719347@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Roberto =3D?iso-8859-1?Q?C=3D2E_S=3DE1nchez?=3D write= s: > I am investigating backporting the fixes for CVE-2022-1552 to 9.6 and > 9.4 as part of Debian LTS and Extended LTS. I am aware that these > releases are no longer supported upstream, but I have made an attempt at > adapting commits ef792f7856dea2576dcd9cab92b2b05fe955696b and > f26d5702857a9c027f84850af48b0eea0f3aa15c from the REL_10_STABLE branch. > I would appreciate a review of the attached patches and any comments on > things that may have been missed and/or adapted improperly. FWIW, I would not recommend being in a huge hurry to back-port those changes, pending the outcome of this discussion: https://www.postgresql.org/message-id/flat/f8a4105f076544c180a87ef0c482235= 2%40stmuk.bayern.de We're going to have to tweak that code somehow, and it's not yet entirely clear how. regards, tom lane