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Gentoo Linux Security Advisory                           GLSA 200501-01
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  Severity: Normal
     Title: LinPopUp: Buffer overflow in message reply
      Date: January 04, 2005
      Bugs: #74705
        ID: 200501-01

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Synopsis
========

LinPopUp contains a buffer overflow potentially allowing execution of
arbitrary code.

Background
==========

LinPopUp is a graphical application that acts as a frontend to Samba
client messaging functions, allowing a Linux desktop to communicate
with a Microsoft Windows computer that runs Winpopup.

Affected packages
=================

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  net-im/linpopup     < 2.0.4-r1                        >= 2.0.4-r1

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

Stephen Dranger discovered that LinPopUp contains a buffer overflow in
string.c, triggered when replying to a remote user message.

Impact
======

A remote attacker could craft a malicious message that, when replied
using LinPopUp, would exploit the buffer overflow. This would result in
the execution of arbitrary code with the privileges of the user running
LinPopUp.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All LinPopUp users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-im/linpopup-2.0.4-r1"

References
==========

  [ 1 ] CAN-2004-1282
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1282
  [ 2 ] Stephen Dranger Advisory
        http://tigger.uic.edu/~jlongs2/holes/linpopup.txt

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

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

  http://security.gentoo.org/glsa/glsa-200501-01.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 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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