Can an action to overturn a conviction be brought as collateral attack?

The rule against collateral attack bars actions to overturn convictions when those actions take place in the wrong forum. As stated in Wilson v. The Queen, 1983 CanLII 35 (SCC), [1983] 2 S.C.R. 594, at p. 599, the rule against collateral attack has long been a fundamental rule that a court order, made by a court having jurisdiction to make it, stands and is binding and conclusive unless it is set aside on appeal or lawfully quashed. It is also well settled in the authorities that such an order may not be attacked collaterally — and a collateral attack may be described as an attack made in proceedings other than those whose specific object is the reversal, variation, or nullification of the order or judgment. … Binnie J. described the rule against collateral attack in Danyluk, supra, at para. 20, as follows: “that a judicial order pronounced by a court of competent jurisdiction should not be brought into question in subsequent proceedings except those provided by law for the express purpose of attacking it” (emphasis added).