Advisory Details

March 30th, 2009

Mozilla Firefox XUL _moveToEdgeShift() Memory Corruption Vulnerability

ZDI-09-015
ZDI-CAN-465

CVE ID CVE-2009-1044
CVSS SCORE
AFFECTED VENDORS Mozilla Firefox
AFFECTED PRODUCTS 3.0.x
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 6947. For further product information on the TippingPoint IPS: 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 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.

ADDITIONAL DETAILS 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 Nils
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