[ GLSA 200506-17 ] SpamAssassin 3, Vipul's Razor: Denial of Service vulnerability

[Sune Kloppenborg Jeppesen <jaervosz () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200506-17
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: SpamAssassin 3, Vipul's Razor: Denial of Service
            vulnerability
      Date: June 21, 2005
      Bugs: #94722, #95492
        ID: 200506-17

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Synopsis
========

SpamAssassin and Vipul's Razor are vulnerable to a Denial of Service
attack when handling certain malformed messages.

Background
==========

SpamAssassin is an extensible email filter which is used to identify
junk email. Vipul's Razor is a client for a distributed, collaborative
spam detection and filtering network.

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

    -------------------------------------------------------------------
     Package                   /  Vulnerable  /             Unaffected
    -------------------------------------------------------------------
  1  mail-filter/spamassassin       < 3.0.4                   >= 3.0.4
                                                               < 3.0.1
  2  mail-filter/razor              < 2.71                     >= 2.71
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

SpamAssassin and Vipul's Razor contain a Denial of Service
vulnerability when handling special misformatted long message headers.

Impact
======

By sending a specially crafted message an attacker could cause a Denial
of Service attack against the SpamAssassin/Vipul's Razor server.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SpamAssassin users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-filter/spamassassin-3.0.4"

All Vipul's Razor users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-filter/razor-2.71"

References
==========

  [ 1 ] CAN-2005-1266
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1266
  [ 2 ] SpamAssassin Announcement
        http://mail-archives.apache.org/mod_mbox/spamassassin-announce/200506.mbox/%3c17072.35054.586017.822288 () 
proton pathname com%3e
  [ 3 ] Vipul's Razor Announcement
        http://sourceforge.net/mailarchive/forum.php?thread_id=7520323&forum_id=4259

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

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

  http://security.gentoo.org/glsa/glsa-200506-17.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 2005 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/2.0

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