low3.7
CVE-2020-37289
Vyper before 0.3.1 lacks a uint8 type, allowing interface return values declared as uint8, such as ERC20.decimals(), to be stored in uint256 variables without …
Impact
Vyper before 0.3.1 lacks a uint8 type, allowing interface return values declared as uint8, such as ERC20.decimals(), to be stored in uint256 variables without bounds checking. Malicious contracts can return values greater than 255 to manipulate or bypass contract logic that relies on these values.
Affected products
| Product | Affected versions |
|---|---|
| Vyper | before 0.3.1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.