Apple has released an update. iOS 8.1.2 update is for iPhone, iPad and iPod touch users. This small update is around 36 MB.
The easiest way to download and install iOS 8.1.2 is through the Software Update mechanism on the device.
Users can also choose to install iOS 8.1.2 through iTunes on a Mac or PC, where the update will become available when appropriate hardware is connected to a computer with a USB cable.