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Date: Wed, 22 Aug 2012 15:59:57 +0000
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>, 
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Cc: ZDI Disclosures <zdi-disclosures@...com>
Subject: ZDI-12-151 : Oracle Outside In Excel File TxO
 Parsing Remote Code Execution Vulnerability

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ZDI-12-151 : Oracle Outside In Excel File TxO Parsing Remote Code Execution
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-151
August 22, 2012

- -- CVE ID:


- -- CVSS:
10, AV:N/AC:L/Au:N/C:C/I:C/A:C

- -- Affected Vendors:
Oracle

- -- Affected Products:
Oracle Outside In

- -- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of products utilizing Oracle's Outside In
Technology. User interaction is required to exploit this vulnerability in
that the target must open a malicious file.

The specific flaw exists within the library's parsing of Excel files. When
handling the TxO record, the vseshr.dll module can be made to wrap an
integer value when parsing a specific field. This can lead to an improper
memory allocation that can be leveraged to corrupt the heap leading to
arbitrary code execution under the context of the user running the
application. 

- -- Vendor Response:
Oracle has issued an update to correct this vulnerability. More details can
be found at:
http://www.oracle.com/technetwork/topics/security/cpuapr2012-366314.html


- -- Disclosure Timeline:
2011-12-19 - Vulnerability reported to vendor
2012-08-22 - Coordinated public release of advisory


- -- Credit:
This vulnerability was discovered by:
* gwlabs.com


- -- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:

    http://twitter.com/thezdi

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