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Category:   Application (E-mail Client)  >   Mutt Vendors:   Mutt.org
(Debian Issues Fix for 2.2) Mutt Off-by-one Buffer Overflow in Processing IMAP Messages May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1006496
SecurityTracker URL:  http://securitytracker.com/id/1006496
CVE Reference:   CVE-2003-0167   (Links to External Site)
Date:  Apr 7 2003
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.3.28 and prior versions
Description:   A potential buffer overflow vulnerability was reported in the Mutt e-mail client. A remote user may be able to execute arbitrary code.

Byrial Jensen reported that there is a potential buffer overflow caused by an off-by-one error in Mutt's 'imap/util.c' file on line 125. The maximum field width in a sscanf() function call is 1 byte too large.

A remote user (acting as an IMAP server) may be able to cause a target user's Mutt client to crash or possibly execute arbitrary code when connected to the IMAP server.

[Editor's note: This was made public in April 2002, but not widely reported on security discussion lists.]

Impact:   A remote IMAP server may be able to cause a target user's connected Mutt client to crash or execute arbitrary code.
Solution:   Debian has released a fix in version 1.2.5-5.2 for Debian Linux 2.2 (potato). The fix for 3.0 (woody) was announced in a separate advisory [see the Message History].

Debian GNU/Linux 2.2 alias potato:

Source archives:

http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2.dsc
Size/MD5 checksum: 590 8fb484ef4a54ae0b806136fd0c241a0b
http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2.diff.gz
Size/MD5 checksum: 21591 c9efb077c78cfd7b8239cc96cf3ad8fd
http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5.orig.tar.gz
Size/MD5 checksum: 1973923 0ba5367059abdd55daceb82dce6be42f

Alpha architecture:

http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_alpha.deb
Size/MD5 checksum: 1130904 efa96771fd9e4d8c831b360e931e36f3

ARM architecture:

http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_arm.deb
Size/MD5 checksum: 1044368 dc804baf176435e04ae30ea742777aeb

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_i386.deb
Size/MD5 checksum: 1018660 4649d3d1b48600caacf6a4ca93f12408

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_m68k.deb
Size/MD5 checksum: 1001078 215b72365791489d99907b4bca2a9a7b

PowerPC architecture:

http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_powerpc.deb
Size/MD5 checksum: 1050530 e3699e0ea5aa6f802825528929f5a529

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_sparc.deb
Size/MD5 checksum: 1047240 547236f863d5094f95f36d4ea6f4accc

Vendor URL:  www.mutt.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Debian)
Underlying OS Comments:  2.2

Message History:   This archive entry is a follow-up to the message listed below.
Mar 28 2003 Mutt Off-by-one Buffer Overflow in Processing IMAP Messages May Let Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [SECURITY] [DSA 274-2] New mutt packages fix arbitrary code execution in potato


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 274-2                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
April 7th, 2003                         http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : mutt
Vulnerability  : buffer overflow
Problem-Type   : remote
Debian-specific: no
CVE Id         : CAN-2003-0167

Byrial Jensen discovered a couple of off-by-one buffer overflow in the
IMAP code of Mutt, a text-oriented mail reader supporting IMAP, MIME,
GPG, PGP and threading.  This problem could potentially allow a remote
malicious IMAP server to cause a denial of service (crash) and
possibly execute arbitrary code via a specially crafted mail folder.

This advisory only covers the old stable distribution (potato) since
DSA 274-1 already fixed the stable distribution (woody).  For the old
stable distribution (potato) this problem has been fixed in version
1.2.5-5.2.

We recommend that you upgrade your mutt package.


Upgrade Instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 2.2 alias potato
- ---------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2.dsc
      Size/MD5 checksum:      590 8fb484ef4a54ae0b806136fd0c241a0b
    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2.diff.gz
      Size/MD5 checksum:    21591 c9efb077c78cfd7b8239cc96cf3ad8fd
    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5.orig.tar.gz
      Size/MD5 checksum:  1973923 0ba5367059abdd55daceb82dce6be42f

  Alpha architecture:

    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_alpha.deb
      Size/MD5 checksum:  1130904 efa96771fd9e4d8c831b360e931e36f3

  ARM architecture:

    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_arm.deb
      Size/MD5 checksum:  1044368 dc804baf176435e04ae30ea742777aeb

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_i386.deb
      Size/MD5 checksum:  1018660 4649d3d1b48600caacf6a4ca93f12408

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_m68k.deb
      Size/MD5 checksum:  1001078 215b72365791489d99907b4bca2a9a7b

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_powerpc.deb
      Size/MD5 checksum:  1050530 e3699e0ea5aa6f802825528929f5a529

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/m/mutt/mutt_1.2.5-5.2_sparc.deb
      Size/MD5 checksum:  1047240 547236f863d5094f95f36d4ea6f4accc


- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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