Premanand Maharaj Ji
Is it wrong to listen when someone shares another person's faults with me?
Talking about others is gossip
Sharing your own trouble with a friend is different, but speaking of another person's faults is nindā and chugli (criticism and gossip). Such talk should not be heard, because it quickly makes the mind impure.
But if we are telling you about someone else, that becomes criticism. That becomes gossip. That should not be listened to.