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Gentoo Linux Security Advisory                           GLSA 200710-24
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: OpenOffice.org: Heap-based buffer overflow
      Date: October 23, 2007
      Bugs: #192818
        ID: 200710-24

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Synopsis
========

A heap-based buffer overflow vulnerability has been discovered in
OpenOffice.org, allowing for the remote execution of arbitrary code.

Background
==========

OpenOffice.org is an open source office productivity suite, including
word processing, spreadsheet, presentation, drawing, data charting,
formula editing, and file conversion facilities.

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

    -------------------------------------------------------------------
     Package                    /  Vulnerable  /            Unaffected
    -------------------------------------------------------------------
  1  app-office/openoffice           < 2.3.0                  >= 2.3.0
  2  app-office/openoffice-bin       < 2.3.0                  >= 2.3.0
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

iDefense Labs reported that the TIFF parsing code uses untrusted values
to calculate buffer sizes, which can lead to an integer overflow
resulting in heap-based buffer overflow.

Impact
======

A remote attacker could entice a user to open a specially crafted
document, possibly leading to execution of arbitrary code with the
privileges of the user running OpenOffice.org.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All OpenOffice.org users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
 ">=app-office/openoffice-2.3.0"

All OpenOffice.org binary users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
 ">=app-office/openoffice-bin-2.3.0"

References
==========

  [ 1 ] CVE-2007-2834
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2834

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

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

  http://security.gentoo.org/glsa/glsa-200710-24.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 2007 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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