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[ GLSA 200612-13 ] libgsf: Buffer overflow
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Tue, 12 Dec 2006 23:13:37 +0100

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Gentoo Linux Security Advisory                           GLSA 200612-13
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: libgsf: Buffer overflow
      Date: December 12, 2006
      Bugs: #156693
        ID: 200612-13

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Synopsis
========

libgsf improperly allocates memory allowing for a heap overflow and
possibly the execution of arbitrary code.

Background
==========

The GNOME Structured File Library is an I/O library that can read and
write common file types and handle structured formats that provide
file-system-in-a-file semantics.

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  gnome-extra/libgsf      < 1.14.2                        >= 1.14.2

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

"infamous41md" has discovered that the "ole_init_info" function may
allocate too little memory for storing the contents of an OLE document,
resulting in a heap buffer overflow.

Impact
======

An attacker could entice a user to open a specially crafted OLE
document, and possibly execute arbitrary code with the rights of the
user opening the document.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libgsf users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=gnome-extra/libgsf-1.14.2"

References
==========

  [ 1 ] CVE-2006-4514
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4514

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

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

  http://security.gentoo.org/glsa/glsa-200612-13.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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