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

[Sune Kloppenborg Jeppesen]

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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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