Which iOS versions are affected by the 2nd December date bug?

Solution 1:

iOS (11.1.1 & 11.1.2) version are affected.

This bug fixed in iOS 11.2

Article link : https://appleinsider.com/articles/17/12/02/new-ios-bug-causes-some-devices-to-crash-on-dec-2-heres-how-to-fix-it