bugtraq - ZDI-09-015: Mozilla Firefox XUL _moveToEdgeShift() Memory Corruption Vulnerability

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Message-ID: <C5F6B4BC.15D4B%zdi-disclosures@tippingpoint.com>
Date: Mon, 30 Mar 2009 17:41:16 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: FD <full-disclosure@...ts.grok.org.uk>,
	bugtraq <bugtraq@...urityfocus.com>
Cc: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
Subject: ZDI-09-015: Mozilla Firefox XUL _moveToEdgeShift() Memory
 Corruption Vulnerability

ZDI-09-015: Mozilla Firefox XUL _moveToEdgeShift() Memory Corruption
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-09-015
March 30, 2009

-- CVE ID:
CVE-2009-1044

-- Affected Vendors:
Mozilla Firefox

-- Affected Products:
Mozilla Firefox 3.0.x

-- 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 in the XUL tree method _moveToEdgeShift(). In
some cases this call will trigger garbage collection routines on in use
objects which will result in a future call to a dangling pointer. This
can be leveraged to execute arbitrary code under the context of the
current user.

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

http://www.mozilla.org/security/announce/2009/mfsa2009-13.html

-- Disclosure Timeline:
2009-03-19 - Vulnerability reported to vendor
2009-03-30 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Nils

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