All Bluetooth specifications from V2.1+EDR to V5.0 are affected by the security vulnerability. It goes without saying that the individual device manufacturers are responsible for patching the wireless stacks in the end devices via FOTA (firmware update over the air) to ensure they are free of flaws. This feature is supported by all current Bluetooth components in the Rutronik portfolio.
As the undisputed market leader (approx. 45 percent market share) and a member of BSIG, Nordic already offers faultless stacks and Toshiba and ST are already working on patches. Therefore, the device manufacturers are required to forward the available updates to their devices as quickly as possible so that the attack gap will not actually be exploited soon.
Erratum 10734: https://www.bluetooth.org/docman/handlers/downloaddoc.ashx?doc_id=447440&_ga=2.253269836.453099069.1533649306-1605826663.1532498694