CWE-369 (除零错误) — Vulnerability Class 147

CWE-369, Divide By Zero, is a logical weakness where a software product attempts to divide a value by zero, causing a runtime error or application crash. This flaw typically arises when unexpected user input or internal state errors bypass validation checks, particularly in calculations involving physical dimensions like length or width. Exploitation often results in denial of service, as the resulting exception disrupts normal program flow and may expose sensitive stack traces to attackers. To mitigate this risk, developers must implement robust input validation to ensure divisor values are non-zero before arithmetic operations. Additionally, employing defensive programming techniques, such as explicit error handling blocks and boundary checks, allows the application to gracefully manage invalid inputs. By rigorously testing edge cases and enforcing strict data integrity constraints, engineers can prevent these arithmetic anomalies from compromising system stability and security.