Advisory Details

December 18th, 2015

Mozilla Firefox HTMLVideoElement Use-After-Free Remote Code Execution Vulnerability

ZDI-15-646
ZDI-CAN-3176

CVE ID CVE-2015-4509
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 20821. 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 media objects. By manipulating a document's elements an attacker can cause a HTMLVideoElement object in memory to be reused after it has been freed. An attacker can leverage this vulnerability to execute arbitrary 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:
https://www.mozilla.org/en-US/security/advisories/mfsa2015-106/
DISCLOSURE TIMELINE
  • 2015-08-24 - Vulnerability reported to vendor
  • 2015-12-18 - Coordinated public release of advisory
CREDIT Anonymous
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