[ GLSA 200411-06 ] MIME-tools: Virus detection evasion

[Thierry Carrez <koon () gentoo org>]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200411-06
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Low
     Title: MIME-tools: Virus detection evasion
      Date: November 02, 2004
      Bugs: #69181
        ID: 200411-06

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

Synopsis
========

MIME-tools doesn't handle empty MIME boundaries correctly. This may
prevent some virus-scanning programs which use MIME-tools from
detecting certain viruses.

Background
==========

MIME-tools is a Perl module containing functions to handle MIME
attachments.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  dev-perl/MIME-tools       < 5.415                        >= 5.415

Description
===========

MIME-tools doesn't correctly parse attachment boundaries with an empty
name (boundary="").

Impact
======

An attacker could send a carefully crafted email and evade detection on
some email virus-scanning programs using MIME-tools for attachment
decoding.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MIME-tools users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-perl/MIME-tools-5.415"

References
==========

  [ 1 ] MIMEDefang announcement

http://lists.roaringpenguin.com/pipermail/mimedefang/2004-October/024959.html

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200411-06.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/1.0

Attachment: signature.asc
Description: OpenPGP digital signature