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A DoS bug in Firefox is causing crashes on Mac OS, Linux and Windows



A DoS bug in Firefox is causing crashes on Mac OS, Linux and Windows


A security researcher named Sabri Haddouchesoftware engineer employed in the messaging application Wirehas discovered this DoS bug that can cause a Complete blocking of Firefox on any operating system.

This becomes even more serious when, although MacOS and Linuxthe only thing that crashes and ends up with the error reporting window is the browser itself, in Windows things get complicated, to the point of the whole system collapse and have to do a forced restart.

Sabri has informed Mozilla of this browser bug and explained how it works. Your script generates a file containing a name extremely longand asks the user to download it at a speed of approximately 1000 times per second. This makes the system you use firefox to communicate the master process of firefox with the process corresponding to the affected window overflowing, slowing down the browser at best, and crashing the system completely in the worst case.

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For now, all versions of firefox are vulnerable to this script, including versions Nightly and Browser Developerso we can only wait for Mozilla fix this bug.