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Zero Day Initiative Advisory 12-202

Zero Day Initiative Advisory 12-202
Posted Dec 22, 2012
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 12-202 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable products utilizing the Oracle Outside In technology. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of WordPerfect files. When parsing font records the code within vswp5.dll does not validate the datasize value prior to performing arithmetic on it. The result is used to make a heap allocation that can be undersized which can be leveraged to corrupt memory leading to arbitrary code execution under the context of the user running the application.

tags | advisory, remote, arbitrary, code execution
SHA-256 | e25b8828258f073e53feb2ed7214be089c7e83bf2ede768f5059e9d62f67d356

Zero Day Initiative Advisory 12-202

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ZDI-12-202 : Oracle Outside In WordPerfect File Processing Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-202
December 21, 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 products utilizing the Oracle Outside In technology. User
interaction is required to exploit this vulnerability in that the target
must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of WordPerfect files. When
parsing font records the code within vswp5.dll does not validate the
datasize value prior to performing arithmetic on it. The result is used to
make a heap allocation
that can be undersized which can be leveraged to corrupt memory 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
2012-12-21 - Coordinated public release of advisory


- -- Credit:
This vulnerability was discovered by:
* gwslabs.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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