bugtraq - ZDI-10-132: Mozilla Firefox Plugin Parameter EnsureCachedAttrParamArrays Remote Code Execution Vulnerability

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Message-ID: <EE499D69B3D0714590B6FE9762B0461104BD3C399C@emb01.unity.local>
Date: Tue, 20 Jul 2010 19:25:17 -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-10-132: Mozilla Firefox Plugin Parameter
 EnsureCachedAttrParamArrays Remote Code Execution Vulnerability

ZDI-10-132: Mozilla Firefox Plugin Parameter EnsureCachedAttrParamArrays Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-132
July 20, 2010

-- CVE ID:
CVE-2010-1214

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

-- 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 10029. 
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 or open a malicious file.

The specific flaw exists within the browser's method for parsing child
elements out of a particular tag. The application will use a 32-bit
index to enumerate them, but will store it in a 16-bit signed integer
and then use it to allocate space for a cache.  When populating the
cache a buffer overflow will occur. This can lead to code execution
under the context of the application.

-- 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/mfsa2010-37.html

-- Disclosure Timeline:
2010-06-17 - Vulnerability reported to vendor
2010-07-20 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * J23 (http://twitter.com/HansJ23)

-- About the Zero Day Initiative (ZDI):
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disclosing discovered vulnerabilities.

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