[ GLSA 200405-10 ] Icecast denial of service vulnerability

[Thierry Carrez <koon () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200405-10
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Icecast denial of service vulnerability
      Date: May 19, 2004
      Bugs: #50935
        ID: 200405-10

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Synopsis
========

Icecast is vulnerable to a denial of service attack allowing remote
users to crash the application.

Background
==========

Icecast is a program that streams audio data to listeners over the
Internet.

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

    -------------------------------------------------------------------
     Package           /   Vulnerable   /                   Unaffected
    -------------------------------------------------------------------
  1  net-misc/icecast       <= 2.0.0                          >= 2.0.1

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

There is an out-of-bounds read error in the web interface of Icecast
when handling Basic Authorization requests. This vulnerability can
theorically be exploited by sending a specially crafted Authorization
header to the server.

Impact
======

By exploiting this vulnerability, it is possible to crash the Icecast
server remotely, resulting in a denial of service attack.

Workaround
==========

There is no known workaround at this time. All users are advised to
upgrade to the latest available version of Icecast.

Resolution
==========

All users of Icecast should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv ">=net-misc/icecast-2.0.1"
    # emerge ">=net-misc/icecast-2.0.1"

References
==========

  [ 1 ] Icecast 2.0.1 announcement
        http://www.xiph.org/archives/icecast/7144.html

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

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

     http://security.gentoo.org/glsa/glsa-200405-10.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 Technologies, 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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