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ZDI-10-160: Adobe Shockwave Player Director File FFFFFF45 Record Processing Remote Code Execution Vulnerability
From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
Date: Tue, 24 Aug 2010 16:38:23 -0500

ZDI-10-160: Adobe Shockwave Player Director File FFFFFF45 Record Processing Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-160
August 24, 2010

-- CVE ID:
CVE-2010-2871

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

-- Affected Vendors:
Adobe

-- Affected Products:
Adobe Shockwave Player

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10286. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of the Adobe Shockwave Player. 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 application's support for 3D
objects. While parsing the 0xFFFFFF45 RIFF record type, the process
performs arithmetic on a size value and uses the result for a heap-based
allocation. By specifying a large enough value an attacker can force the
integer to wrap and thus the process will under-allocate the buffer.
This memory is later copied into using a different size value which
results in object corruption that can be leveraged to execute arbitrary
code under the context of the user running the browser.

-- Vendor Response:
Adobe has issued an update to correct this vulnerability. More
details can be found at:

http://www.adobe.com/support/security/bulletins/apsb10-20.html

-- Disclosure Timeline:
2010-06-30 - Vulnerability reported to vendor
2010-08-24 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Anonymous

-- 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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