#1062: rfc2047 encoded headers incorrectly parsed
------------------------------------------------------+---------------------
Reporter: Pavel Troller <pat...@tangens.sinus.cz> | Owner: mutt-dev
Type: enhancement | Status: closed
Priority: trivial | Milestone:
Component: mutt | Version: 1.3.27i
Resolution: invalid | Keywords: patch
#364941
------------------------------------------------------+---------------------
Changes (by pdmef):
* status: new => closed
* resolution: => invalid
Old description:
> {{{
> Package: mutt
> Version: 1.3.27i
> Severity: normal
>
> -- Please type your report below this line
> This version of mutt doesn't recognize rfc2047 headers, if the encoded
> portion contains spaces.
> mutt-1.2.5, which I've been using for a long time, did this correctly.
> I don't know the exact syntax of rfc2047, maybe spaces are forbidden
> here,
> but many UAs are putting spaces into the quoted-printable encoded
> headers.
>
> The problem is in rfc2047.c, in find_encoded_word().
>
> I've made the following change to fix this problem:
> --- rfc2047.c.orig Thu Feb 21 11:56:09 2002
> +++ rfc2047.c Thu Feb 21 11:35:15 2002
> @@ -701,12 +701,12 @@
> while ((p = strstr (q, "=?")))
> {
> for (q = p + 2;
> - 0x20 < *q && *q < 0x7f && !strchr ("()<>@,;:\"/[]?.=", *q);
> + 0x20 <= *q && *q < 0x7f && !strchr ("()<>@,;:\"/[]?.=", *q);
> q++)
> ;
> if (q[0] != '?' || !strchr ("BbQq", q[1]) || q[2] != '?')
> continue;
> - for (q = q + 3; 0x20 < *q && *q < 0x7f && *q != '?'; q++)
> + for (q = q + 3; 0x20 <= *q && *q < 0x7f && *q != '?'; q++)
> ;
> if (q[0] != '?' || q[1] != '=')
> {
>
> With regards, Pavel Troller
>
> -- Build environment information
>
> (Note: This is the build environment installed on the system
> muttbug is run on. Information may or may not match the environment
> used to build mutt.)
>
> - gcc version information
> gcc
> Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/specs
> gcc version 2.95.3 20010315 (release)
>
> - CFLAGS
> -Wall -pedantic -O2 -march=i586 -mcpu=i586 -fomit-frame-pointer -fforce-
> mem -fforce-addr
>
> -- Mutt Version Information
>
> Mutt 1.3.27i (2002-01-22)
> Copyright (C) 1996-2001 Michael R. Elkins and others.
> Mutt comes with ABSOLUTELY NO WARRANTY; for details type `mutt -vv'.
> Mutt is free software, and you are welcome to redistribute it
> under certain conditions; type `mutt -vv' for details.
>
> System: Linux 2.4.17 (i686) [using ncurses 5.2]
> Compile options:
> -DOMAIN
> -DEBUG
> -HOMESPOOL +USE_SETGID +USE_DOTLOCK +DL_STANDALONE
> +USE_FCNTL -USE_FLOCK
> +USE_POP +USE_IMAP -USE_GSS +USE_SSL -USE_SASL
> +HAVE_REGCOMP -USE_GNU_REGEX
> +HAVE_COLOR +HAVE_START_COLOR +HAVE_TYPEAHEAD +HAVE_BKGDSET
> +HAVE_CURS_SET +HAVE_META +HAVE_RESIZETERM
> +HAVE_PGP -BUFFY_SIZE -EXACT_ADDRESS -SUN_ATTACHMENT
> +ENABLE_NLS -LOCALES_HACK +HAVE_WC_FUNCS +HAVE_LANGINFO_CODESET
> +HAVE_LANGINFO_YESEXPR
> +HAVE_ICONV -ICONV_NONTRANS +HAVE_GETSID +HAVE_GETADDRINFO
> ISPELL="/usr/bin/ispell"
> SENDMAIL="/usr/sbin/sendmail"
> MAILPATH="/var/mail"
> PKGDATADIR="/usr/share/mutt"
> SYSCONFDIR="/etc"
> EXECSHELL="/bin/sh"
> -MIXMASTER
> To contact the developers, please mail to <mutt-dev@mutt.org>.
> To report a bug, please use the flea(1) utility.
>
> Received: (at submit) by bugs.guug.de; 26 Dec 2001 00:35:23 +0000
> From ask...@digitalprojects.com Wed Dec 26 01:35:23 2001
> Received: from basket.ball.reliam.net ([213.91.6.7])
> by trithemius.gnupg.org with esmtp (Exim 3.12 #1 (Debian))
> id 16J22V-0001Wd-00
> for <sub...@bugs.guug.de>; Wed, 26 Dec 2001 01:35:23 +0100
> Received: from teich.garten.digitalprojects.com
> (pD9E67FBF.dip.t-dialin.net [217.230.127.191])
> by basket.ball.reliam.net (Postfix) with ESMTP
> id 444843DAC; Wed, 26 Dec 2001 01:33:24 +0100 (CET)
> Received: by teich.garten.digitalprojects.com (Postfix, from userid 501)
> id 463F5B5D8F; Wed, 26 Dec 2001 01:33:21 +0100 (CET)
> Subject: mutt-1.3.24i: mutt doesn't correctly handle badly formated
> quoted-printable
> To: sub...@bugs.guug.de
> Message-Id: <20011226003321.463f5b5...@teich.garten.digitalprojects.com>
> Date: Wed, 26 Dec 2001 01:33:21 +0100 (CET)
> From: ask...@digitalprojects.com (Alexander Skwar)
>
> Package: mutt
> Version: 1.3.24i
> Severity: important
>
> -- Please type your report below this line
>
> Some MUAs (like PostMe or Jubii mailer (Mime.MMail, ver: 2,4,0,15) used
> by
> Lycos), produce badly formated quoted-printable encoded words in the
> header fields.
>
> For example, "Jubii mailer" sent me this mail (only copying relevant
> headers):
>
> +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
>
> From pruegelpa...@lycos-europe.com Mon Dec 24 17:30:10 2001
> Return-Path: <pruegelpa...@lycos-europe.com>
> MIME-Version: 1.0
> X-Mailer: Jubii mailer (Mime.MMail, ver: 2,4,0,15)
> From: =?iso-8859-1?Q? "Lycos_Pr=FCgelpause" ?= <pruegelpa...@lycos-
> europe.com>
> Subject: Du wurdest herausgefordert
> To: "" <ask...@digitalprojects.com>
> Content-Type: Multipart/Alternative;
> boundary="------------Boundary-00=_8CWUHW9GSSJ4GPWWKFN2"
> Message-ID: <viralrelaysrv1f8gl1000fe...@viralrelaysrv1.jubii.dk>
>
> Content-Type: Text/Plain
> Content-Transfer-Encoding: quoted-printable
>
> =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
>
> The 2nd Content-Type "header" is because Lycos sends out HTML mail.
> Anyways,
> PostMe also sends out mails with a From: which is just as broken. As you
> can
> see, the "quoted-printable" encoded-word contains both SPACE and ";
> neither of
> these characters is allowed according to RFC 2047.
>
> However, the IETF motto is: "Be strict in what you produce and tolerant
> to what
> you receive." Mutt should be able to handle this, even if it's broken.
>
> -- Build environment information
>
> (Note: This is the build environment installed on the system
> muttbug is run on. Information may or may not match the environment
> used to build mutt.)
>
> - gcc version information
> gcc
> Reading specs from /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/specs
> gcc version 2.96 20000731 (Mandrake Linux 8.2 2.96-0.68mdk)
>
> - CFLAGS
> -O3 -fomit-frame-pointer -pipe -mcpu=pentiumpro -march=i586 -ffast-math
> -fno-strength-reduce
>
> -- Mutt Version Information
>
> Mutt 1.3.24i (2001-11-29)
> Copyright (C) 1996-2001 Michael R. Elkins und andere.
> Mutt übernimmt KEINERLEI GEWÄHRLEISTUNG. Starten Sie `mutt -vv', um
> weitere Details darüber zu erfahren. Mutt ist freie Software.
> Sie können es unter bestimmten Bedingungen weitergeben; starten Sie
> `mutt -vv' für weitere Details.
>
> System: Linux 2.4.13-12mdk (i686) [using ncurses 5.2]
> Einstellungen bei der Compilierung:
> -DOMAIN
> +DEBUG
> -HOMESPOOL +USE_SETGID +USE_DOTLOCK +DL_STANDALONE
> +USE_FCNTL -USE_FLOCK
> +USE_POP +USE_IMAP -USE_GSS +USE_SSL -USE_SASL
> +HAVE_REGCOMP -USE_GNU_REGEX
> +HAVE_COLOR +HAVE_START_COLOR +HAVE_TYPEAHEAD +HAVE_BKGDSET
> +HAVE_CURS_SET +HAVE_META +HAVE_RESIZETERM
> +HAVE_PGP -BUFFY_SIZE -EXACT_ADDRESS -SUN_ATTACHMENT
> +ENABLE_NLS -LOCALES_HACK +COMPRESSED +HAVE_WC_FUNCS
> +HAVE_LANGINFO_CODESET +HAVE_LANGINFO_YESEXPR
> +HAVE_ICONV -ICONV_NONTRANS +HAVE_GETSID +HAVE_GETADDRINFO
> ISPELL="/usr/bin/ispell"
> SENDMAIL="/usr/sbin/sendmail"
> MAILPATH="/var/mail"
> PKGDATADIR="/usr/share/mutt"
> SYSCONFDIR="/etc"
> EXECSHELL="/bin/sh"
> -MIXMASTER
> Um die Entwickler zu kontaktieren, schicken Sie bitte
> eine Nachricht (in englisch) an <mutt-dev@mutt.org>.
> Um einen Bug zu melden, verwenden Sie bitte das Programm flea(1).
>
> patch-1.3.24.rr.compressed.1
>
> >How-To-Repeat:
> >Fix:
> }}}
New description:
{{{
Package: mutt
Version: 1.3.27i
Severity: normal
-- Please type your report below this line
This version of mutt doesn't recognize rfc2047 headers, if the encoded
portion contains spaces.
mutt-1.2.5, which I've been using for a long time, did this correctly.
I don't know the exact syntax of rfc2047, maybe spaces are forbidden here,
but many UAs are putting spaces into the quoted-printable encoded headers.
The problem is in rfc2047.c, in find_encoded_word().
I've made the following change to fix this problem:
--- rfc2047.c.orig Thu Feb 21 11:56:09 2002
+++ rfc2047.c Thu Feb 21 11:35:15 2002
@@ -701,12 +701,12 @@
while ((p = strstr (q, "=?")))
{
for (q = p + 2;
- 0x20 < *q && *q < 0x7f && !strchr ("()<>@,;:\"/[]?.=", *q);
+ 0x20 <= *q && *q < 0x7f && !strchr ("()<>@,;:\"/[]?.=", *q);
q++)
;
if (q[0] != '?' || !strchr ("BbQq", q[1]) || q[2] != '?')
continue;
- for (q = q + 3; 0x20 < *q && *q < 0x7f && *q != '?'; q++)
+ for (q = q + 3; 0x20 <= *q && *q < 0x7f && *q != '?'; q++)
;
if (q[0] != '?' || q[1] != '=')
{
With regards, Pavel Troller
-- Build environment information
(Note: This is the build environment installed on the system
muttbug is run on. Information may or may not match the environment
used to build mutt.)
- gcc version information
gcc
Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/specs
gcc version 2.95.3 20010315 (release)
- CFLAGS
-Wall -pedantic -O2 -march=i586 -mcpu=i586 -fomit-frame-pointer -fforce-
mem -fforce-addr
-- Mutt Version Information
Mutt 1.3.27i (2002-01-22)
Copyright (C) 1996-2001 Michael R. Elkins and others.
Mutt comes with ABSOLUTELY NO WARRANTY; for details type `mutt -vv'.
Mutt is free software, and you are welcome to redistribute it
under certain conditions; type `mutt -vv' for details.
System: Linux 2.4.17 (i686) [using ncurses 5.2]
Compile options:
-DOMAIN
-DEBUG
-HOMESPOOL +USE_SETGID +USE_DOTLOCK +DL_STANDALONE
+USE_FCNTL -USE_FLOCK
+USE_POP +USE_IMAP -USE_GSS +USE_SSL -USE_SASL
+HAVE_REGCOMP -USE_GNU_REGEX
+HAVE_COLOR +HAVE_START_COLOR +HAVE_TYPEAHEAD +HAVE_BKGDSET
+HAVE_CURS_SET +HAVE_META +HAVE_RESIZETERM
+HAVE_PGP -BUFFY_SIZE -EXACT_ADDRESS -SUN_ATTACHMENT
+ENABLE_NLS -LOCALES_HACK +HAVE_WC_FUNCS +HAVE_LANGINFO_CODESET
+HAVE_LANGINFO_YESEXPR
+HAVE_ICONV -ICONV_NONTRANS +HAVE_GETSID +HAVE_GETADDRINFO
ISPELL="/usr/bin/ispell"
SENDMAIL="/usr/sbin/sendmail"
MAILPATH="/var/mail"
PKGDATADIR="/usr/share/mutt"
SYSCONFDIR="/etc"
EXECSHELL="/bin/sh"
-MIXMASTER
To contact the developers, please mail to <mutt-dev@mutt.org>.
To report a bug, please use the flea(1) utility.
Received: (at submit) by bugs.guug.de; 26 Dec 2001 00:35:23 +0000
From ask...@digitalprojects.com Wed Dec 26 01:35:23 2001
Received: from basket.ball.reliam.net ([213.91.6.7])
by trithemius.gnupg.org with esmtp (Exim 3.12 #1 (Debian))
id 16J22V-0001Wd-00
for <sub...@bugs.guug.de>; Wed, 26 Dec 2001 01:35:23 +0100
Received: from teich.garten.digitalprojects.com
(pD9E67FBF.dip.t-dialin.net [217.230.127.191])
by basket.ball.reliam.net (Postfix) with ESMTP
id 444843DAC; Wed, 26 Dec 2001 01:33:24 +0100 (CET)
Received: by teich.garten.digitalprojects.com (Postfix, from userid 501)
id 463F5B5D8F; Wed, 26 Dec 2001 01:33:21 +0100 (CET)
Subject: mutt-1.3.24i: mutt doesn't correctly handle badly formated
quoted-printable
To: sub...@bugs.guug.de
Message-Id: <20011226003321.463f5b5...@teich.garten.digitalprojects.com>
Date: Wed, 26 Dec 2001 01:33:21 +0100 (CET)
From: ask...@digitalprojects.com (Alexander Skwar)
Package: mutt
Version: 1.3.24i
Severity: important
-- Please type your report below this line
Some MUAs (like PostMe or Jubii mailer (Mime.MMail, ver: 2,4,0,15) used by
Lycos), produce badly formated quoted-printable encoded words in the
header fields.
For example, "Jubii mailer" sent me this mail (only copying relevant
headers):
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
From pruegelpa...@lycos-europe.com Mon Dec 24 17:30:10 2001
Return-Path: <pruegelpa...@lycos-europe.com>
MIME-Version: 1.0
X-Mailer: Jubii mailer (Mime.MMail, ver: 2,4,0,15)
From: =?iso-8859-1?Q? "Lycos_Pr=FCgelpause" ?= <pruegelpa...@lycos-
europe.com>
Subject: Du wurdest herausgefordert
To: "" <ask...@digitalprojects.com>
Content-Type: Multipart/Alternative;
boundary="------------Boundary-00=_8CWUHW9GSSJ4GPWWKFN2"
Message-ID: <viralrelaysrv1f8gl1000fe...@viralrelaysrv1.jubii.dk>
Content-Type: Text/Plain
Content-Transfer-Encoding: quoted-printable
=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
The 2nd Content-Type "header" is because Lycos sends out HTML mail.
Anyways,
PostMe also sends out mails with a From: which is just as broken. As you
can
see, the "quoted-printable" encoded-word contains both SPACE and ";
neither of
these characters is allowed according to RFC 2047.
However, the IETF motto is: "Be strict in what you produce and tolerant to
what
you receive." Mutt should be able to handle this, even if it's broken.
-- Build environment information
(Note: This is the build environment installed on the system
muttbug is run on. Information may or may not match the environment
used to build mutt.)
- gcc version information
gcc
Reading specs from /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/specs
gcc version 2.96 20000731 (Mandrake Linux 8.2 2.96-0.68mdk)
- CFLAGS
-O3 -fomit-frame-pointer -pipe -mcpu=pentiumpro -march=i586 -ffast-math
-fno-strength-reduce
-- Mutt Version Information
Mutt 1.3.24i (2001-11-29)
Copyright (C) 1996-2001 Michael R. Elkins und andere.
Mutt übernimmt KEINERLEI GEWÄHRLEISTUNG. Starten Sie `mutt -vv', um
weitere Details darüber zu erfahren. Mutt ist freie Software.
Sie können es unter bestimmten Bedingungen weitergeben; starten Sie
`mutt -vv' für weitere Details.
System: Linux 2.4.13-12mdk (i686) [using ncurses 5.2]
Einstellungen bei der Compilierung:
-DOMAIN
+DEBUG
-HOMESPOOL +USE_SETGID +USE_DOTLOCK +DL_STANDALONE
+USE_FCNTL -USE_FLOCK
+USE_POP +USE_IMAP -USE_GSS +USE_SSL -USE_SASL
+HAVE_REGCOMP -USE_GNU_REGEX
+HAVE_COLOR +HAVE_START_COLOR +HAVE_TYPEAHEAD +HAVE_BKGDSET
+HAVE_CURS_SET +HAVE_META +HAVE_RESIZETERM
+HAVE_PGP -BUFFY_SIZE -EXACT_ADDRESS -SUN_ATTACHMENT
+ENABLE_NLS -LOCALES_HACK +COMPRESSED +HAVE_WC_FUNCS
+HAVE_LANGINFO_CODESET +HAVE_LANGINFO_YESEXPR
+HAVE_ICONV -ICONV_NONTRANS +HAVE_GETSID +HAVE_GETADDRINFO
ISPELL="/usr/bin/ispell"
SENDMAIL="/usr/sbin/sendmail"
MAILPATH="/var/mail"
PKGDATADIR="/usr/share/mutt"
SYSCONFDIR="/etc"
EXECSHELL="/bin/sh"
-MIXMASTER
Um die Entwickler zu kontaktieren, schicken Sie bitte
eine Nachricht (in englisch) an <mutt-dev@mutt.org>.
Um einen Bug zu melden, verwenden Sie bitte das Programm flea(1).
patch-1.3.24.rr.compressed.1
>How-To-Repeat:
>Fix:
}}}
--
Comment:
Since nobody asked again in years and the request would break mutt, I'm
closing this ticket.
--
Ticket URL: <http://dev.mutt.org/trac/ticket/1062#comment:19>
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