full-disclosure - CVE-2013-4156: OpenOffice DOCM Memory Corruption Vulnerability

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Date: Fri, 26 Jul 2013 07:56:40 +0200
From: Herbert Duerr <hdu@...che.org>
To: announce@...noffice.apache.org, dev@...noffice.apache.org, 
 users@...noffice.apache.org, full-disclosure@...ts.grok.org.uk, 
 bugtraq@...urityfocus.com
Cc: msvr@...rosoft.com
Subject: CVE-2013-4156: OpenOffice DOCM Memory Corruption
	Vulnerability

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Hash: SHA1

CVE-2013-4156
OpenOffice DOCM Memory Corruption Vulnerability

Severity: Important
Vendor: The Apache Software Foundation

Versions Affected:
     Apache OpenOffice 3.4.0 and 3.4.1, on all platforms.
     Predecessor versions of OpenOffice.org may be also affected.

Description:

     The vulnerability is caused by mishandling of unknown XML elements
when parsing a OOXML document file. Specially crafted documents can be
used for memory-corruption attacks. Further exploits are possible but
have not been verified.

Mitigation

     Apache OpenOffice 3.4.0 and 3.4.1 users are advised to upgrade to
Apache OpenOffice 4.0. Users who are unable to upgrade immediately
should be cautious when opening untrusted documents.

Credits

     The Apache OpenOffice Security Team credits Jeremy Brown of
Microsoft Vulnerability Research as the discoverer of this flaw.

Herbert Dürr
Member of the Apache OpenOffice Security Team
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