[ GLSA 200409-31 ] jabberd 1.x: Denial of Service vulnerability

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

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Gentoo Linux Security Advisory                           GLSA 200409-31
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: jabberd 1.x: Denial of Service vulnerability
      Date: September 23, 2004
      Bugs: #64741
        ID: 200409-31

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Synopsis
========

The jabberd server was found to be vulnerable to a remote Denial of
Service attack.

Background
==========

Jabber is a set of streaming XML protocols enabling message, presence,
and other structured information exchange between two hosts. jabberd is
the original implementation of the Jabber protocol server.

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

    -------------------------------------------------------------------
     Package         /   Vulnerable   /                     Unaffected
    -------------------------------------------------------------------
  1  net-im/jabberd      <= 1.4.3-r3                       >= 1.4.3-r4

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

Jose Antonio Calvo found a defect in routines handling XML parsing of
incoming data. jabberd 1.x may crash upon reception of invalid data on
any socket connection on which XML is parsed.

Impact
======

A remote attacker may send a specific sequence of bytes to an open
socket to crash the jabberd server, resulting in a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All jabberd users should upgrade to the latest version:

    # emerge sync

    # emerge -pv ">=net-im/jabberd-1.4.3-r4"
    # emerge ">=net-im/jabberd-1.4.3-r4"

References
==========

  [ 1 ] Vulnerability disclosure
        http://www.jabber.org/pipermail/jabberd/2004-September/002004.html
  [ 2 ] Jabber announcement
        http://www.jabber.org/pipermail/jadmin/2004-September/018046.html

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

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

  http://security.gentoo.org/glsa/glsa-200409-31.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

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