Sure, but those are lists of weaknesses, not of bugs. Of course most of them would be memory errors. A program can play entirely by the rules and still display

Sure, but those are lists of weaknesses, not of bugs. Of course most of them would be memory errors. A program can play entirely by the rules and still display incorrect behavior. Consider for example the Mars Climate Orbiter bug. No amount of memory safety could have prevented that (although C++ could have been able to encode the unit information in its type system).