146 - Arithemtic Check
Overflow/Underflow Check: Until Solidity version 0.8.0 which introduced checked arithmetic by default, arithmetic was unchecked and therefore susceptible to overflows and underflows which could lead to critical vulnerabilities.
The recommended best-practice for such contracts is to use OpenZeppelin’s SafeMath library for arithmetic.
- Arithmetic Overflow/Underflow -> Wrapping
- Balance & Accounting
- Critical Vulnerabilities
- solc
<0.8.0- SafeMath Library
- solc
>=0.8.0- Default Checks