1. Vulnerability Description

• If abnormal range is referenced, sensitive information may be leaked or crash may occur.

2. Vulnerability Countermeasure

• If array variables are used, reference should be made within normal range.

3. Sample Code

• Vulnerable Code
  • For the code below, the index is negative, which can cause unexpected behavior.

object Test 
{
    List(1,2,3)(-2)
}