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[ GLSA 200606-30 ] Kiax: Arbitrary code execution
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Fri, 30 Jun 2006 17:10:59 +0200

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Gentoo Linux Security Advisory                           GLSA 200606-30
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Kiax: Arbitrary code execution
      Date: June 30, 2006
      Bugs: #136099
        ID: 200606-30

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Synopsis
========

A security vulnerability in the iaxclient library could lead to the
execution of arbitrary code by a remote attacker.

Background
==========

Kiax is a graphical softphone supporting the IAX protocol (Inter
Asterisk eXchange), which allows PC users to make VoIP calls to
Asterisk servers.

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

    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  net-misc/kiax     < 0.8.5_p1                          >= 0.8.5_p1

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

The iax_net_read function in the iaxclient library fails to properly
handle IAX2 packets with truncated full frames or mini-frames. These
frames are detected in a length check but processed anyway, leading to
buffer overflows.

Impact
======

By sending a specially crafted IAX2 packet, an attacker could execute
arbitrary code with the permissions of the user running Kiax.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Kiax users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/kiax-0.8.5_p1"

References
==========

  [ 1 ] CVE-2006-2923
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2923

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

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

  http://security.gentoo.org/glsa/glsa-200606-30.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 2006 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/2.5

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