New CSS Attack Restarts an iPhone or Freezes a Mac

guest · Sep 15, 2018

New CSS Attack Restarts an iPhone or Freezes a Mac
September 15, 2018
https://www.bleepingcomputer.com/news/security/new-css-attack-restarts-an-iphone-or-freezes-a-mac/

A new attack has been discovered that will cause iOS to restart or respring and macOS to freeze simply by visiting a web page that contains certain CSS & HTML. Windows and Linux users are not affected by this bug.

This new attack was discovered by Sabri Haddouche, a security researcher at Wire, who was able to devise a way to quickly use up an Apple device's resources so that it crashes when visiting a web page.

"All browsers on iOS are affected because the underlying rendering engine is WebKit," Haddouche explained. "As per App Store rules, it is forbidden to bring your own rendering engine."
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