A direct attack on a judgment or decree is an attempt for sufficient cause to have it annulled reversed vacated corrected declared void or enjoined in a proceeding instituted for that specific purpose such as an appeal writ of error bill of review or injunction to restrain its execution; distinguished from a collateral attack which is an attempt to impeach the validity or binding force of the judgment or decree as a side issue or in a proceeding instituted for some other purpose.