full-disclosure - [ GLSA 200405-10 ] Icecast denial of service vulnerability

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From: koon at gentoo.org (Thierry Carrez)
Subject: [ GLSA 200405-10 ] Icecast denial of service vulnerability

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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@...too.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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