I've just released NoUSSD 1.0.1, an update to my Android utility that prevents malicious websites from using the recently discovered tel: URL attack and potentially remotely wipe your device.
This version features a drastically smaller footprint, and was also localized for many regions. Tip of the hat to the following people for providing translations:
NoUSSD requires no special permissions and is open source. It is available for free on the Google Play Store.