Advisory Details

April 2nd, 2010

Mozilla Firefox Web Worker Array Remote Code Execution Vulnerability

ZDI-10-046
ZDI-CAN-624

CVE ID CVE-2010-0160
CVSS SCORE 10.0, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Mozilla Firefox
AFFECTED PRODUCTS 3.6.x
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9619. 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 within the implementation of web worker threads. Due to mishandling the array data type while processing posted messages, a web worker thread can be made to corrupt heap memory. An attacker can exploit this vulnerability to execute arbitrary code under the context of the user running the browser.

VENDOR RESPONSE Mozilla Firefox has issued an update to correct this vulnerability. More details can be found at:
http://www.mozilla.org/security/announce/2010/mfsa2010-02.html
DISCLOSURE TIMELINE
  • 2009-12-04 - Vulnerability reported to vendor
  • 2010-04-02 - Coordinated public release of advisory
CREDIT Orlando Barrera II, SecTheory
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