Public Vulnerability Reports

Adobe Flash Player URL Parsing Heap Overflow Vulnerability

06.08.09

BACKGROUND

Adobe Flash Player is Flash Player is a cross-platform browser plug-in that delivers interactive content for Web experiences. For more information, please visit following page:

http://www.adobe.com/products/flashplayer/

DESCRIPTION

Remote exploitation of a heap overflow vulnerability in Adobe Systems Inc's Flash Player could allow an attacker to execute arbitrary code with the privileges of the current user.

When a specifically crafted URL is passed to Flash Player, a heap overflow can occur and could result in arbitrary code execution.

ANALYSIS

Exploitation of this vulnerability allows the attacker to execute arbitrary code with the privileges of the current user. To exploit this vulnerability, a targeted user must load a malicious Web page created by an attacker. An attacker typically accomplishes this via social engineering techniques or injecting content into compromised, trusted sites.

DETECTION

iDefense confirmed the existence of this vulnerability in Flash Player 10.0.22.87. Other versions may also be affected.

WORKAROUND

iDefense is unaware of any effective workaround for this vulnerability.

VENDOR RESPONSE

Adobe has released an update which addresses this issue. For more information, consult their advisory (APSB09-10) at the following URL:

http://www.adobe.com/support/security/bulletins/apsb09-10.html

CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2009-1868 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems.

DISCLOSURE TIMELINE

04/09/2009 - Initial Contact
04/09/2009 - PoC Requested
04/09/2009 - PoC Sent
07/30/2009 - Adobe releases update for Flash
08/05/2009 - iDefense requests clarification
08/06/2009 - Adobe clarifies fixed issue
08/06/2009 - Public disclosure

CREDIT

This vulnerability was discovered by Jun Mao, iDefense Labs

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LEGAL NOTICES

Copyright © 2009 Verisign, Inc.

Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDefense. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please e-mail customer service for permission.

Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.