Brian O'Nora, the chief of the umpiring crew that worked Thursday's Yankees-Red Sox game, said that the "issue" of the foreign substance caught by TV cameras on Michael Pineda's pitching hand in the third inning was never brought to the attention of the umpires by the Boston Red Sox. Therefore, no punishment was in order, or even possible.
Here is what O'Nora said to a pool reporter who interviewed him after the game: "No one said a word. I can't comment on it because we're on the field, and the Red Sox didn't bring it to our attention, so there's nothing we can do about it. If they bring it to our attention, then you've got something, but they didn't bring it to our attention."
In other words, it's a non-issue.