Colorado's defense and special teams provided a scoring boost and the Buffaloes recorded three touchdowns in a five-minute span Saturday, paving the way for a 34-0 win over Arizona at Folsom Field. The Buffs, who ended a four-game losing streak, improved to 2-4 overall and 1-2 in Pac-12 play. Arizona, which lost its 18th straight game, fell to 0-6, 0-3.