Apple have released a patch - for iOS11. If, like me, you have an iPhone5, then you are out of luck - Apple's philosophy is that you need to throw away their products every few years and buy new ones, so if you have a perfectly good phone that you have no intention of replacing, then you just have to put up with it remaining vulnerable to such attacks.
I could 'upgrade' from a phone that does absolutely everything I want (except get patches for the latest security flaws built into it by its manufacturer), to a new phone that has no headphone jack, and that I therefore cannot use in my seven year old car. But I really don't think I should have to buy a new car because Apple don't feel like maintaining their software.
It's a great business model.