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Gentoo Linux Security Advisory                           GLSA 201811-09
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                                           https://security.gentoo.org/
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 Severity: High
    Title: Icecast: Arbitrary code execution
     Date: November 10, 2018
     Bugs: #670148
       ID: 201811-09

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Synopsis
========

A vulnerability in Icecast might allow remote attackers to execute
arbitrary code.

Background
==========

Icecast is an open source alternative to SHOUTcast that supports MP3,
OGG (Vorbis/Theora) and AAC streaming.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/icecast             < 2.4.4                    >= 2.4.4

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

Multiple buffer overflows have been discovered in Icecast. Please
review the CVE identifier referenced below for details.

Impact
======

A remote attacker, by sending a specially crafted request using
authentication type "url", could possibly execute arbitrary code with
the privileges of the process, or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Icecast users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/icecast-2.4.4"

References
==========

[ 1 ] CVE-2018-18820
      https://nvd.nist.gov/vuln/detail/CVE-2018-18820

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

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

 https://security.gentoo.org/glsa/201811-09

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
https://bugs.gentoo.org.

License
=======

Copyright 2018 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.

https://creativecommons.org/licenses/by-sa/2.5