Cyberfox Web Browser Denial-of-Service Vulnerability

A denial-of-service vulnerability has been identified in Cyberfox Web Browser version 52.9.1. This issue allows attackers to crash the application by overflowing the search bar with excessive data. By generating a payload of 9,000,000 bytes and pasting it into the search bar, the application can be forced to crash.

Impact

Exploitation of this vulnerability leads to a crash of the Cyberfox Web Browser, causing a denial-of-service condition where the application becomes unresponsive.

Reproduction

To reproduce this vulnerability, first run a Python script that creates a file named 'output.txt' containing 9,000,000 bytes of data. After the file is created, open Cyberfox Web Browser and copy the contents of 'output.txt'. Paste the data into the search bar, which will trigger the application to crash.