GLSA 200501-20: o3read: Buffer overflow during file conversion

http://security.gentoo.org/

Severity:	normal
Title:	o3read: Buffer overflow during file conversion
Date:	01/11/2005
Bugs:	#74478
ID:	200501-20

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	Architecture(s)
app-text/o3read	<= 0.0.3	>= 0.0.4	All supported architectures

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

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 https://bugs.gentoo.org.