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TPTI-11-11: Adobe Shockwave Lnam Chunk Parsing Remote Code Execution Vulnerability
From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
Date: Wed, 15 Jun 2011 20:21:48 +0000

TPTI-11-11: Adobe Shockwave Lnam Chunk Parsing Remote Code Execution Vulnerability

http://dvlabs.tippingpoint.com/advisory/TPTI-11-11

June 15, 2011

-- CVE ID:
CVE-2011-2116

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

-- 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 11347. 
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 Lnam chunk inside Adobe's RIFF-based
Director file format. The code within the IML32.dll does not properly
validate certain fields before using them to calculate sizes used for
later memory copy operations. This can lead to memory corruption which
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/apsb11-17.html

-- Disclosure Timeline:
2011-04-25 - Vulnerability reported to vendor
2011-06-15 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Logan Brown and Aaron Portnoy, TippingPoint DVLabs


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