SecurityTracker.com Archives - (Debian Issues Fix for Balsa) Mutt Off-by-one Buffer Overflow in Processing IMAP Messages May Let Remote Users Execute Arbitrary Code

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Category: Application (E-mail Client) > Balsa

Vendors: Gnome Development Team

(Debian Issues Fix for Balsa) Mutt Off-by-one Buffer Overflow in Processing IMAP Messages May Let Remote Users Execute Arbitrary Code

SecurityTracker Alert ID: 1006714

CVE Reference: CAN-2003-0167 (Links to External Site)

Date: May 7 2003

Impact: Denial of service via network, Execution of arbitrary code via network, User access via network

Fix Available: Yes Vendor Confirmed: Yes

Description: A potential buffer overflow vulnerability was reported in the Mutt e-mail client, also affecting Balsa (which includes the vulnerable Mutt code). 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.

Vendor URL: balsa.gnome.org/ (Links to External Site)

Cause: Boundary error

Underlying OS: Linux (Debian)

Underlying OS Comments: 3.0

Reported By: joey@infodrom.org (Martin Schulze)

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

Date: Tue, 6 May 2003 10:40:18 +0200 (CEST)
From: joey@infodrom.org (Martin Schulze)
Subject: [SECURITY] [DSA 300-1] New Balsa packages fix buffer overflow

 

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

- --------------------------------------------------------------------------
Debian Security Advisory DSA 300-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
May 6th, 2003                           http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : balsa
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 code is imported in the Balsa package.
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.

For the stable distribution (woody) this problem has been fixed in
version 1.2.4-2.2.

The old stable distribution (potato) does not seem to be affected by
this problem.

For the unstable distribution (sid) this problem will be fixed soon.

We recommend that you upgrade your balsa 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 3.0 alias woody
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2.dsc
      Size/MD5 checksum:      899 bfabf9c762d0babfc4c532d62d08eef8
    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2.diff.gz
      Size/MD5 checksum:    16793 1bc9ed8d33b0f8cfc699ae578b91a97d
    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4.orig.tar.gz
      Size/MD5 checksum:  2786340 dcf73fcd61bdcbf096e24b19caeefa5c

  Alpha architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_alpha.deb
      Size/MD5 checksum:  1366172 ea50ad1b7baab90bcf47a63fc1d25d40

  ARM architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_arm.deb
      Size/MD5 checksum:   699500 84d8b1ee67c2bfca305b13f863ef27e5

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_i386.deb
      Size/MD5 checksum:   685200 5c59b2b846383a2df303b95363c92258

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_ia64.deb
      Size/MD5 checksum:   909148 16fee79e2b9bd88a7e640caec331a80c

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_hppa.deb
      Size/MD5 checksum:   763024 1d0a4edd79d2dcc1c9aa219f62648c39

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_m68k.deb
      Size/MD5 checksum:   666182 627e92b40f86c46b19781633d7b8cb41

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_mips.deb
      Size/MD5 checksum:   719484 ee2414ea4f1e670f743a97418bcfd728

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_mipsel.deb
      Size/MD5 checksum:   711736 984658af1b6317e6b22d780f34e6faf8

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_powerpc.deb
      Size/MD5 checksum:   707476 034e2676655ec263069253ed3ab19c48

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_s390.deb
      Size/MD5 checksum:   700180 8cfd5d74cfae74175b6b05c1937ba29a

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/b/balsa/balsa_1.2.4-2.2_sparc.deb
      Size/MD5 checksum:   702718 a0b50b9c59c1268c1bc7a6f8d3fdea92


  These files will probably be moved into the stable distribution on
  its next revision.

- ---------------------------------------------------------------------------------
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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