VUPEN Security Research - Adobe Flash Player "newclass" Invalid Pointer 
Vulnerability (CVE-2010-2173)

http://www.vupen.com/english/research.php


I. BACKGROUND
---------------------

"Adobe Flash Player is a cross-platform browser-based application runtime
that delivers uncompromised viewing of expressive applications, content,
and videos across screens and browsers. Flash Player delivers breakthrough
web experiences to over 98% of Internet users." from Adobe.com


II. DESCRIPTION
---------------------

VUPEN Vulnerability Research Team discovered a critical vulnerability
in Adobe Flash Player.

This vulnerability is caused due to an invalid pointer when processing
the "newclass" operator (bytecode 0x58), which could be exploited by
attackers to execute arbitrary code by tricking a user into visiting a
specially crafted web page.


III. AFFECTED PRODUCTS
---------------------------

Adobe Flash Player versions prior to 10.1.53.64
Adobe Flash Player versions prior to 9.0.277.0


IV. Binary Analysis & Proof-of-concept
---------------------------------------

In-depth binary analysis, code execution exploits and proof-of-concept
codes are published through the VUPEN Binary Analysis & Exploits Service :

http://www.vupen.com/exploits/


V. SOLUTION
----------------

Upgrade to Flash Player version 10.1.53.64 or 9.0.277.0 :
http://www.adobe.com/go/getflash


VI. CREDIT
--------------

This vulnerability was discovered by Nicolas Joly of VUPEN Security


VII. ABOUT VUPEN Security
---------------------------

VUPEN is a leading IT security research company providing vulnerability
management and security intelligence solutions which enable enterprises
and institutions to eliminate vulnerabilities before they can be exploited,
ensure security policy compliance and meaningfully measure and manage risks.

Governmental and federal agencies, and global enterprises in the financial
services, insurance, manufacturing and technology industries rely on VUPEN
to improve their security, prioritize resources, cut time and costs, and
stay ahead of the latest threats.

* VUPEN Vulnerability Notification Service (VNS) :
http://www.vupen.com/english/services/

* VUPEN Binary Analysis & Exploits Service (BAE) :
http://www.vupen.com/exploits/

* VUPEN Threat Protection Program (TPP) :
http://www.vupen.com/english/tpp/

* VUPEN Web Application Security Scanner (WASS) :
http://www.vupen.com/english/wass/


VIII. REFERENCES
----------------------

http://www.vupen.com/english/advisories/2010/1421
http://www.adobe.com/support/security/bulletins/apsb10-14.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2173


IX. DISCLOSURE TIMELINE
-----------------------------

2010-03-08 - Vendor notified
2010-03-08 - Vendor response
2010-04-16 - Status update received
2010-06-02 - Status update received
2010-06-11 - Coordinated public Disclosure