public override void Bad() { int data; data = int.MinValue; /* Initialize data */ /* get environment variable ADD */ /* POTENTIAL FLAW: Read data from an environment variable */ { string stringNumber = Environment.GetEnvironmentVariable("ADD"); if (stringNumber != null) // avoid NPD incidental warnings { try { data = int.Parse(stringNumber.Trim()); } catch (FormatException exceptNumberFormat) { IO.Logger.Log(NLog.LogLevel.Warn, exceptNumberFormat, "Number format exception parsing data from string"); } } } LinkedList <int> dataLinkedList = new LinkedList <int>(); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); CWE789_Uncontrolled_Mem_Alloc__Environment_HashSet_73b.BadSink(dataLinkedList); }
/* goodG2B() - use goodsource and badsink */ private static void GoodG2B() { int data; /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */ data = 2; LinkedList <int> dataLinkedList = new LinkedList <int>(); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); CWE789_Uncontrolled_Mem_Alloc__Environment_HashSet_73b.GoodG2BSink(dataLinkedList); }