[Full-disclosure] [ GLSA 200710-24 ] OpenOffice.org: Heap-based buffer overflow

[Raphael Marichez]

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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 at 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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