Re: Sections 3.3.2 and 3.3.3 allow bogus Content-Length?

"Poul-Henning Kamp" <phk@phk.freebsd.dk> Tue, 14 February 2017 21:14 UTC

Return-Path: <ietf-http-wg-request+bounce-httpbisa-archive-bis2juki=lists.ie@listhub.w3.org>
X-Original-To: ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com
Delivered-To: ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 295801298AB for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Tue, 14 Feb 2017 13:14:47 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.902
X-Spam-Level:
X-Spam-Status: No, score=-6.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6fdS1XEodlva for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Tue, 14 Feb 2017 13:14:44 -0800 (PST)
Received: from frink.w3.org (frink.w3.org [128.30.52.56]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 50854129887 for <httpbisa-archive-bis2Juki@lists.ietf.org>; Tue, 14 Feb 2017 13:14:44 -0800 (PST)
Received: from lists by frink.w3.org with local (Exim 4.80) (envelope-from <ietf-http-wg-request@listhub.w3.org>) id 1cdkOm-0000ha-By for ietf-http-wg-dist@listhub.w3.org; Tue, 14 Feb 2017 21:12:32 +0000
Resent-Date: Tue, 14 Feb 2017 21:12:32 +0000
Resent-Message-Id: <E1cdkOm-0000ha-By@frink.w3.org>
Received: from mimas.w3.org ([128.30.52.79]) by frink.w3.org with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from <phk@phk.freebsd.dk>) id 1cdkOi-0000gB-Lm for ietf-http-wg@listhub.w3.org; Tue, 14 Feb 2017 21:12:28 +0000
Received: from phk.freebsd.dk ([130.225.244.222]) by mimas.w3.org with esmtp (Exim 4.84_2) (envelope-from <phk@phk.freebsd.dk>) id 1cdkOa-0002op-H3 for ietf-http-wg@w3.org; Tue, 14 Feb 2017 21:12:23 +0000
Received: from critter.freebsd.dk (unknown [192.168.55.3]) by phk.freebsd.dk (Postfix) with ESMTP id 3C5B3273C6; Tue, 14 Feb 2017 21:11:57 +0000 (UTC)
Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.15.2/8.15.2) with ESMTP id v1ELBthE074701; Tue, 14 Feb 2017 21:11:55 GMT (envelope-from phk@phk.freebsd.dk)
To: Loïc Hoguin <essen@ninenines.eu>
cc: Adrien de Croy <adrien@qbik.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
In-reply-to: <e01c4945-1116-d258-7004-ea917843bf3d@ninenines.eu>
From: Poul-Henning Kamp <phk@phk.freebsd.dk>
References: <emdcb96fc0-0d2f-436c-9f1f-05beffe7593e@bodybag> <e01c4945-1116-d258-7004-ea917843bf3d@ninenines.eu>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <74699.1487106715.1@critter.freebsd.dk>
Content-Transfer-Encoding: quoted-printable
Date: Tue, 14 Feb 2017 21:11:55 +0000
Message-ID: <74700.1487106715@critter.freebsd.dk>
Received-SPF: none client-ip=130.225.244.222; envelope-from=phk@phk.freebsd.dk; helo=phk.freebsd.dk
X-W3C-Hub-Spam-Status: No, score=-5.3
X-W3C-Hub-Spam-Report: AWL=-1.407, BAYES_00=-1.9, RP_MATCHES_RCVD=-0.001, W3C_AA=-1, W3C_WL=-1
X-W3C-Scan-Sig: mimas.w3.org 1cdkOa-0002op-H3 5218bd0bc3d6f89efb7c1d29439a497a
X-Original-To: ietf-http-wg@w3.org
Subject: Re: Sections 3.3.2 and 3.3.3 allow bogus Content-Length?
Archived-At: <http://www.w3.org/mid/74700.1487106715@critter.freebsd.dk>
Resent-From: ietf-http-wg@w3.org
X-Mailing-List: <ietf-http-wg@w3.org> archive/latest/33490
X-Loop: ietf-http-wg@w3.org
Resent-Sender: ietf-http-wg-request@w3.org
Precedence: list
List-Id: <ietf-http-wg.w3.org>
List-Help: <http://www.w3.org/Mail/>
List-Post: <mailto:ietf-http-wg@w3.org>
List-Unsubscribe: <mailto:ietf-http-wg-request@w3.org?subject=unsubscribe>

--------
In message <e01c4945-1116-d258-7004-ea917843bf3d@ninenines.eu>, =?UTF-8?Q?Lo=c3=afc_Hoguin?= writes:

>    4.  If a message is received without Transfer-Encoding and with
>        either multiple Content-Length header fields having differing
>        field-values or a single Content-Length header field having an
>        invalid value,

Last year, I think, I have had some dude claim that a "valid value"
was a sequence of digits, but that there is no explicit requirement
that it match the length of the body of that request.

I told him to get stuffed.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.