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ZDI-10-049: Mozilla Firefox PluginArray nsMimeType Dangling Pointer Remote Code Execution Vulnerability



ZDI-10-049: Mozilla Firefox PluginArray nsMimeType Dangling Pointer Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-049
April 2, 2010

-- CVE ID:
CVE-2010-0177

-- Affected Vendors:
Mozilla Firefox

-- Affected Products:
Mozilla Firefox 3.5.x


-- 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 a user must be coerced to
viewing a malicious document.

The specific flaw exists within the way the application implements the
window.navigator.plugins array. Due to the application freeing the
contents of the array while a reference to one of the elements is still
being used, an attacker can utilize the free reference to call arbitrary
code. Successful exploitation can lead to code execution under the
context of the application.



-- 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/mfsa2010-19.html

-- Disclosure Timeline:
2010-01-06 - Vulnerability reported to vendor
2010-04-02 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * regenrecht

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