I am having a hard time telling exactly what that hose is, but it looks like it is just a breather hose, not under pressure or anything. You should be able to take it to the auto parts store and match up a length of plain vacuum line hose for it for a few dollars. Take it home, wait for the engine to cool, and then change it out.
Your instinct is probably correct, as you should not be getting air bubbles coming out of it. You might also inspect other similar hoses around the engine, as there are probably more hoses in similar condition.
Wednesday, June 14th, 2017 AT 7:09 PM