full-disclosure - CVE-2012-2334 Vulnerabilities related to malformed Powerpoint files in OpenOffice.org 3.3.0

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Message-ID: <CAP-ksogX5VM=1fpJxqUhKJz67DGYpV60BMqjcWuEWLiQ7q6i3g@mail.gmail.com>
Date: Wed, 16 May 2012 11:05:43 -0400
From: Rob Weir <robweir@...che.org>
To: security@...che.org, full-disclosure@...ts.grok.org.uk, 
	bugtraq@...urityfocus.com
Subject: CVE-2012-2334 Vulnerabilities related to
 malformed Powerpoint files in OpenOffice.org 3.3.0

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Hash: SHA512

CVE-2012-2334 Vulnerabilities related to malformed Powerpoint files
in OpenOffice.org 3.3.0

Reference: http://www.openoffice.org/security/cves/CVE-2012-2334.html

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:

OpenOffice.org 3.3 and 3.4 Beta, on all platforms.
Earlier versions may be also affected.

Description:

A review of the code in filter/source/msfilter msdffimp.cxx revealed
some unchecked memory allocations, which could be exploited via
malformed Powerpoint graphics records ("escher") to cause bad_alloc
exceptions. From this vulnerability a denial of service attack is
possible.

Mitigation

OpenOffice.org 3.3.0 and 3.4 beta users are advised to upgrade to
Apache OpenOffice 3.4. Users who are unable to upgrade immediately
should be cautious when opening untrusted documents.

Credits

The Apache OpenOffice Security Team credits Sven Jacobias as the
discoverer of this flaw.
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