bugtraq - ZDI-10-046: Mozilla Firefox Web Worker Array Remote Code Execution Vulnerability

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Message-ID: <EE499D69B3D0714590B6FE9762B0461104B7086813@emb01.unity.local>
Date: Fri, 2 Apr 2010 12:21:48 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>,
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-10-046: Mozilla Firefox Web Worker Array Remote Code Execution
 Vulnerability

ZDI-10-046: Mozilla Firefox Web Worker Array Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-046
April 2, 2010

-- CVE ID:
CVE-2010-0160

-- Affected Vendors:
Mozilla Firefox

-- Affected Products:
Mozilla Firefox 3.6.x

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9619. 
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 Mozilla Firefox. User interaction is
required to exploit this vulnerability in that the target must visit a
malicious page.

The specific flaw exists within the implementation of web worker
threads. Due to mishandling the array data type while processing posted
messages, a web worker thread can be made to corrupt heap memory. An
attacker can exploit this vulnerability to execute arbitrary code under
the context of the user running the browser.

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

http://www.mozilla.org/security/announce/2010/mfsa2010-02.html

-- Disclosure Timeline:
2009-12-04 - Vulnerability reported to vendor
2010-04-02 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Orlando Barrera II, SecTheory

-- About the Zero Day Initiative (ZDI):
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a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

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