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HTML5 Bug Detected That Can Dump Huge Junk Data on Your PC

by technology technology (2020-02-04)

A certain feature on the HTML5 – the language used by most developers to create websites – has been found to be the loophole that, when exploited, can dump huge mounds of data on a computer and take up the much needed disk space. How to Install and Update Device Drivers on your PC?


Web developer Feross Aboukhadijeh discovered what the bug does and how it works, setting up a demo page that fills visitors’ hard drives with pictures of cartoon cats. In one specific demo, Aboukhadijeh showed how he was able to dump one gigabyte of useless data on a Macbook computer in a matter of 16 seconds. He added that most web browsers such as Google Chrome, Opera, Safari, and Internet Explorer are vulnerable to the data-dumping bug. How Webroot help to Protect Your Privacy on Internet?


Although most websites are still coded using the HTML 4, the said web language is gradually being replaced by the HTML5 because it allows websites to locally store more amounts of data in a visitor’s computer. Generally, web browsers set a limit cap on the amount of data that can be stored on a visitor’s computer, with most of them allowing as much as 2.5 megabytes of data in the local storage specification. However, Aboukhadijeh found a way to go over the limit cap by creating a lot of temporary websites that are linked to the single website that the user had visited, adding that each of these temporary websites have been found to be allotted with the same data storage limit because the web browser developers have not written a code to stop the associated websites from being provided with 2.5 megabytes of data storage. How you can get rid of Unnecessary Apps with AVG?


Aboukhadijeh then found out that the bug can be used to drain large amounts of data onto a target PC by merely creating linked websites. “Cleverly coded websites have effectively unlimited storage space on visitor’s computers,” Aboukhadijeh said in a blog post. He also noted that Mozilla Firefox, which has a data storage limit at 5MB, was the only web browser that was not vulnerable to the bug.

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Aboukhadijeh released a code that can exploit the bug, and he set up a website called that would dump unnecessary files such as images of cats on a vulnerable computer’s hard drive. No malicious use of the bug has so far been reported, and major web browsers have already been filing bug reports about the loophole in their efforts to address the problem. How you can Uninstall McAfee Endpoint Security on Window 10?


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