Front axle leak by CV joint

[Wazzu1336]

I have a '08 H3 with 42k miles and I just noticed a leak from what it looks like the seal in between the half shaft and output shaft. It is not leaking much but enough to collect dust. Does anybody know what the name of the actual seal in that area is, if its a major problem, have had this issue before, or if it should be covered under warranty? Thanks!