[ GLSA 200506-15 ] PeerCast: Format string vulnerability

[Thierry Carrez <koon () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200506-15
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                                            http://security.gentoo.org/
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  Severity: High
     Title: PeerCast: Format string vulnerability
      Date: June 19, 2005
      Bugs: #96199
        ID: 200506-15

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Synopsis
========

PeerCast suffers from a format string vulnerability that could allow
arbitrary code execution.

Background
==========

PeerCast is a media streaming system based on P2P technology.

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

    -------------------------------------------------------------------
     Package               /  Vulnerable  /                 Unaffected
    -------------------------------------------------------------------
  1  media-sound/peercast      < 0.1212                      >= 0.1212

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

James Bercegay of the GulfTech Security Research Team discovered that
PeerCast insecurely implements formatted printing when receiving a
request with a malformed URL.

Impact
======

A remote attacker could exploit this vulnerability by sending a request
with a specially crafted URL to a PeerCast server to execute arbitrary
code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PeerCast users should upgrade to the latest available version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-sound/peercast-0.1212"

References
==========

  [ 1 ] GulfTech Advisory
        http://www.gulftech.org/?node=research&article_id=00077-05282005
  [ 2 ] PeerCast Announcement
        http://www.peercast.org/forum/viewtopic.php?p=11596

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

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

  http://security.gentoo.org/glsa/glsa-200506-15.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 2005 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/2.0

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