Advisory Details

April 11th, 2014

(Pwn2Own) Mozilla Firefox TypeObject Use-After-Free Remote Code Execution Vulnerability

ZDI-14-083
ZDI-CAN-2219

CVE ID CVE-2014-1512
CVSS SCORE 6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Mozilla
AFFECTED PRODUCTS Firefox
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['13739']. 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 handling of TypeObjects. By manipulating a document's elements an attacker can force a dangling pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.

ADDITIONAL DETAILS Mozilla has issued an update to correct this vulnerability. More details can be found at:
http://www.mozilla.org/security/announce/2014/mfsa2014-30.html
DISCLOSURE TIMELINE
  • 2014-03-12 - Vulnerability reported to vendor
  • 2014-04-11 - Coordinated public release of advisory
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