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.
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:
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 (dot) org [email concealed] 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.
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
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
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 (at) gentoo (dot) org [email concealed] 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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