GLSA 200501-20: o3read: Buffer overflow
Posted on: 01/11/2005 04:54 PM

An o3read security update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200501-20
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http://security.gentoo.org/
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Severity: Normal
Title: o3read: Buffer overflow during file conversion
Date: January 11, 2005
Bugs: #74478
ID: 200501-20

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Synopsis
=======

A buffer overflow in o3read allows an attacker to execute arbitrary code by way of a specially crafted XML file.

Background
=========

o3read is a standalone converter for OpenOffice.org files. It allows a user to dump the contents tree (o3read) and convert to plain text (o3totxt) or to HTML (o3tohtml) Writer and Calc files.

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

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Package / Vulnerable / Unaffected
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1 app-text/o3read <= 0.0.3 >= 0.0.4

Description
==========

Wiktor Kopec discovered that the parse_html function in o3read.c copies any number of bytes into a 1024-byte t[] array.

Impact
=====

Using a specially crafted file, possibly delivered by e-mail or over the Web, an attacker may execute arbitrary code with the permissions of the user running o3read.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All o3read users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/o3read-0.0.4"

References
=========

[ 1 ] CAN-2004-1288
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1288
[ 2 ] Wiktor Kopec advisory
http://tigger.uic.edu/~jlongs2/holes/o3read.txt

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

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

http://security.gentoo.org/glsa/glsa-200501-20.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 2005 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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