OpenOffice.org: EMF/WMF file handling vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200701-07 / openoffice
Release Date	January 12, 2007
Latest Revision	January 12, 2007: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-office/openoffice-bin	< 2.1.0	>= 2.1.0	All supported architectures
app-office/openoffice	< 2.0.4	>= 2.0.4	All supported architectures

Related bugreports: #159951

Synopsis

A truncation error and integer overflows in the EMF/WMF file handling of OpenOffice.org could be exploited to execute arbitrary code.

2. Impact Information

Background

OpenOffice.org is an open source office productivity suite, including word processing, spreadsheet, presentation, drawing, data charting, formula editing, and file conversion facilities.

Description

John Heasman of NGSSoftware has discovered integer overflows in the EMR_POLYPOLYGON and EMR_POLYPOLYGON16 processing and an error within the handling of META_ESCAPE records.

Impact

An attacker could exploit these vulnerabilities to cause heap overflows and potentially execute arbitrary code with the privileges of the user running OpenOffice.org by enticing the user to open a document containing a malicious WMF/EMF file.

3. Resolution Information

Workaround

There is no known workaround known at this time.

Resolution

All OpenOffice.org binary users should update to version 2.1.0 or later:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/openoffice-bin-2.1.0"

All OpenOffice.org users should update to version 2.0.4 or later:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/openoffice-2.0.4"

4. References

CVE-2006-5870

Updated January 12, 2007

Summary: This is a Gentoo Linux Security Advisory

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