From: ZDI Disclosures <zdi-disclosures@tippingpoint.com.>
To: FD <full-disclosure@lists.grok.org.uk.>,
Date: Thu, 5 Mar 2009 12:01:53 -0600
Subject: ZDI-09-013: Mozilla Firefox XUL Linked Clones Double Free
Vulnerability
Thread-Topic: ZDI-09-013: Mozilla Firefox XUL Linked Clones Double Free
Vulnerability
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Message-ID: <C5D56FB1.15085%zdi-disclosures@tippingpoint.com>
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ZDI-09-013: Mozilla Firefox XUL Linked Clones Double Free Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-09-013
March 5, 2009
-- CVE ID:
CVE-2009-0775
-- Affected Vendors:
Mozilla Firefox
-- Affected Products:
Mozilla Firefox 3.0.x
-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 6870.
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 during the browsers garbage collection process.
When multiple DOM elements are cloned and linked to one another and the
browser is reloaded, a memory corruption occurs resulting in a double
free. 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/mfsa2009-08.html
-- Disclosure Timeline:
2009-01-19 - Vulnerability reported to vendor
2009-03-05 - Coordinated public release of advisory
-- Credit:
This vulnerability was discovered by:
* Anonymous
-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.
Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:
http://www.zerodayinitiative.com
The ZDI is unique in how the acquired vulnerability information is
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exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
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an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.
Our vulnerability disclosure policy is available online at:
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