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Message-ID: <D022C0C981AA4CBEB5FE30E9DB5FFBCC@unknown> Date: Thu, 11 Aug 2011 11:58:04 +0200 From: "VUPEN Security Research" <advisories@...en.com> To: <bugtraq@...urityfocus.com> Subject: VUPEN Security Research - Adobe Flash Player ActionScript FileReference Buffer Overflow (APSB11-21) VUPEN Security Research - Adobe Flash Player ActionScript FileReference Buffer Overflow (APSB11-21) Website : http://www.vupen.com/english/research.php Twitter : http://twitter.com/vupen 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. The vulnerability is caused by a buffer overflow error when processing a malformed ActionScript FileReference method, which could be exploited by remote attackers to compromise a vulnerable system by tricking a user into visiting a specially crafted web page. CVSS Score: 10 (AV:N/AC:L/Au:N/C:C/I:C/A:C) CVE: CVE-2011-2137 III. AFFECTED PRODUCTS --------------------------- Adobe Flash Player v10.3.181.34 and prior Adobe Flash Player v10.3.185.25 and prior for Android Adobe AIR version 2.7 and prior IV. Binary Analysis & Exploits/PoCs --------------------------------------- In-depth binary analysis of the vulnerability and a code execution exploit are available through the VUPEN Binary Analysis & Exploits Service : http://www.vupen.com/english/services/ba-index.php VUPEN Binary Analysis & Exploits Service provides private exploits and in-depth technical analysis of the most significant public vulnerabilities based on disassembly, reverse engineering, protocol analysis, and code audit. The service allows governments and major corporations to evaluate risks, and protect infrastructures and assets against new threats. The service also allows security vendors (IPS, IDS, AntiVirus) to supplement their internal research efforts and quickly develop both vulnerability-based and exploit-based signatures to proactively protect their customers from attacks and emerging threats. V. VUPEN Threat Protection Program ----------------------------------- To proactively protect critical networks and infrastructures against unpatched vulnerabilities and reduce risks related to zero-day attacks, VUPEN shares its vulnerability research with governments and organizations members of the VUPEN Threat Protection Program (TPP). VUPEN TPP customers receive fully detailed and technical reports about security vulnerabilities discovered by VUPEN and in advance of their public disclosure. http://www.vupen.com/english/services/tpp-index.php VI. SOLUTION ---------------- Upgrade to Adobe Flash Player v10.3.183.5 : http://www.adobe.com/go/getflash Upgrade to Adobe Flash Player v10.3.186.3 for Android : market://details?id=com.adobe.flashplayer Upgrade to Adobe AIR v2.7.1 : http://get.adobe.com/air VII. CREDIT -------------- This vulnerability was discovered by Nicolas Joly of VUPEN Security VIII. ABOUT VUPEN Security --------------------------- VUPEN is the world leader in vulnerability research for defensive and offensive security. VUPEN solutions enable corporations and governments to measure and manage risks, eliminate vulnerabilities before they can be exploited, and protect critical infrastructures and assets against known and unknown vulnerabilities. VUPEN has been recently recognized as "Entrepreneurial Company of the Year in the Vulnerability Research Market (2011)" by Frost & Sullivan. VUPEN solutions include: * VUPEN Binary Analysis & Exploits Service (BAE) : http://www.vupen.com/english/services/ba-index.php * VUPEN Threat Protection Program (TPP) : http://www.vupen.com/english/services/tpp-index.php IX. REFERENCES ---------------------- http://www.adobe.com/support/security/bulletins/apsb11-21.html http://www.vupen.com/english/research.php X. DISCLOSURE TIMELINE ----------------------------- 2011-04-28 - Vulnerability Discovered by VUPEN and shared with customers 2011-08-10 - Public disclosure
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