Advisory Details

November 12th, 2008

Mozilla Firefox Input Box Type Property Dangling Pointer Vulnerability

ZDI-08-093
ZDI-CAN-390

CVE ID CVE-2008-5021
CVSS SCORE
AFFECTED VENDORS Mozilla Firefox
Mozilla Firefox
AFFECTED PRODUCTS 3.0.x
2.0.x
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['6618']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows attackers to potentially 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 when a DOM method on a specific HTML form object is called before the object itself has actually completed it's initialization. This will lead to a call of uninitialized data which can result in code execution under the context of the current user.

ADDITIONAL DETAILS Mozilla Firefox has issued an update to correct this vulnerability. More details can be found at:
http://www.mozilla.org/security/announce/2008/mfsa2008-55.html
DISCLOSURE TIMELINE
  • 2008-09-23 - Vulnerability reported to vendor
  • 2008-11-12 - Coordinated public release of advisory
CREDIT ling and wushi of team509
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