Advisory Details

July 20th, 2010

Mozilla Firefox Plugin Parameter EnsureCachedAttrParamArrays Remote Code Execution Vulnerability

ZDI-10-132
ZDI-CAN-821

CVE ID CVE-2010-1214
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Mozilla Firefox
AFFECTED PRODUCTS 3.6.x
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10029. 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 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.

ADDITIONAL DETAILS 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 J23 (http://twitter.com/HansJ23)
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