I'm going to guess you mean these?
The answer is, the latest security updates fixed them. That is the only way for the user to fix anything on iOS as you have no access to the system.
It also isn't as big a deal as it sounds like. Besides Apple themselves, security and university research firms look for possible exploits every day (and also for Microsoft's Windows OS). They report what they find to the respective companies so they can fix them before the crooks find the same flaws and exploit them.
And per normal, neither Apple or Microsoft mentions anything about the fixes they're working on until after the patches have been released. Otherwise, you'd just be telling the crooks where to look.