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[ GLSA 200612-13 ] libgsf: Buffer overflow


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From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: [email protected]
Subject: [ GLSA 200612-13 ] libgsf: Buffer overflow
Date: Tue, 12 Dec 2006 23:13:37 +0100
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Cc: [email protected], [email protected],
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Organization: Gentoo Linux Security Team
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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
[email protected] 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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