New Delhi, July 5
A security researcher has discovered a fun bug that can completely disable your iPhone’s ability to connect to Wi-Fi.
Carl Schou said in a tweet that if an iPhone is within range of a network named% secretclub% power, the device will not be able to use Wi-Fi or any related functionality.
He basically discovered that some Wi-Fi networks with the percent symbol (%) in their name can turn off Wi-Fi on iPhones and other iOS devices, 9to5Mac reports.
After an iPhone or iPad joins the network with the name “% p% s% s% s% s% n”, the device is unable to connect to Wi-Fi networks or use the features of system networking like AirDrop.
The problem persists after restarting the device.
The ‘%’ symbol is commonly used in programming languages ââto format variables in an output string.
“In C, the specifier ‘% n’ means to store the number of characters written in the format string in a variable passed to the string format function. The Wi-Fi subsystem is probably passing the Wi-Fi network name. (SSID) unchecked to an internal library that performs string formatting, which in turn causes arbitrary memory write and buffer overflow, âthe report explains.
âThis will cause memory corruption and the iOS watchdog will kill the process, effectively disabling Wi-Fi for the user,â he added.
Apple had yet to report whether it was working on a solution to the problem. IANS