Korma was a planet in the Cardassian Union and the location of a Cardassian outpost.
In 2372, a conference between the Cardassians and the Bajorans was held there to share intelligence on the Klingons. During the conference, the outpost was attacked and destroyed by Klingon forces, with no survivors. The outpost had been defended by several system-5 disruptors, which were disabled in the attack. One of those disruptors was salvaged by the freighter Groumall and used successfully against one of the Klingon ships responsible. (DS9: "Return to Grace")
Whether this planet was in any way related to the Korma Pass was unknown.
According to the Star Trek: Star Charts (pg. 46), Korma was located in the Korma system. The Korma system was located in or near Cardassian space, in the Alpha Quadrant. This was a binary star system. Primary was a Class F star with a magnitude of +5, which was the same brightness as Sol. Secondary was a Class B star.