A new bug has been detected in the iMessage app of Apple’s iOS which causes the app to crash after a malicious text is received.
The message will contain a vCard – a virtual business card that allows users to share contacts on their device.
The problem vCard is an extremely large file, it has 14,281 lines of code, and as such iMessage can’t process it causing the device to completely freeze and even a reboot won’t solve the issue.
A hard reset even leaves users with a blank screen.
This exploit was detected by a hacker known as vincedes3 who has also provided a fix.
“When you click, iOS want to read the text, the text in the file is very complicated for the system and cause a CPU average: the app freeze,” explained Vincedes3.
“You close the app, want to reopen but iOS want to reload the previous message but can’t because it’s the vcf file.”
The solution offered by vincedes3 is open his site in the Safari browser. This will fix the crash as well as restoring the messaging app back to normal.
This flaw affects the latest version of iOS so many users are exposed to the potential threat.
Unfortunately, messages crashing the iPhone is nothing new as only last year a message containing specific words and symbols forced devices to reboot.
The simple advice is: be careful when you receive messages from unknown sources as opening them may result in killing your iPhone.