CVE-2023-30542
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/04/2023
Last modified:
27/04/2023
Description
OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The `ProposalCreated` event correctly represents what will eventually execute, but the proposal parameters as queried through `getActions` appear to respect the original intended calldata. This issue has been patched in 4.8.3. As a workaround, ensure that all proposals that pass through governance have equal length `signatures` and `calldatas` parameters.
Impact
Base Score 3.x
8.80
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:* | 4.3.0 (including) | 4.8.3 (excluding) |
| cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:* | 4.3.0 (including) | 4.8.3 (excluding) |
To consult the complete list of CPE names with products and versions, see this page



