Definition Socialism — a political and economic theory of social organization which advocates that the means of production, distribution, and exchange should be owned or regulated by the community as a whole.
North Korea Et al. by that definition are not socialist countries they are run under dictatorship and oppression and Communism. However to keep the west hungry on Capitalism is easier to say that these are Socialist countries and look how bad it is.
In Marxists theory it is a transitional social state between the overthrow of capitalism and the realization of Communism however Socialism does not have to become Communism, with the right balance of power.
However looking at the power trip brought by Capitalism, I’m not sure we would be safe in the west either of averting Communism.