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OpenOffice WMF/EMF Processing Buffer Overflow Vulnerabilities
Secunia Advisory: SA23612
Release Date: 2007-01-04
Last Update: 2007-01-08
Popularity: 17,443 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:OpenOffice 1.0.x
OpenOffice 1.1.x
OpenOffice.org 2.x

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CVE reference:CVE-2006-5870


Description:
John Heasman has reported some vulnerabilities in OpenOffice, which can be exploited by malicious people to compromise a user's system.

1) A truncation error within the handling of the META_ESCAPE record can be exploited to cause a heap-based buffer overflow via a specially crafted WMF/EMF file.

2) An integer overflow within the handling of EMR_POLYPOLYGON and EMR_POLYPOLYGON16 records can be exploited to cause a heap-based buffer overflow via a specially crafted WMF/EMF file.

Successful exploitation of the vulnerabilities allows execution of arbitrary code and requires that a user is tricked into opening a specially crafted WMF/EMF file or a specially crafted document.

The vulnerabilities are reported in OpenOffice prior to version 2.1.0. Other versions may also be affected.

Solution:
Apply fixes or update to version 2.1.0.
http://www.openoffice.org/servlets/ReadMsg?list=releases&msgNo=10454

Provided and/or discovered by:
John Heasman, NGSSoftware

Changelog:
2007-01-05: Updated "Description" section to include additional information on the vulnerability as well as affected products. Added link to NGSSoftware.
2007-01-08: Added link to US-CERT.

Original Advisory:
NGSSoftware:
http://www.ngssoftware.com/advisories...nerabilities-in-the-openoffice-suite/

OpenOffice:
http://www.openoffice.org/issues/show_bug.cgi?id=70042

Other References:
http://archives.neohapsis.com/archives/vulnwatch/2007-q1/0002.html

US-CERT VU#220288:
http://www.kb.cert.org/vuls/id/220288


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