An issue in the box_div function in openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service after running a SELECT statement. An issue in the box_add function in openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service after running a SELECT statement. An issue in the box_equal function in openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service after running a SELECT statement. An issue in the box_deserialize_reusing function in openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service after running a SELECT statement