CVE-2023-30542
HIGH8.8EPSS 0.53%GovernorCompatibilityBravo may trim proposal calldata
Description
### Impact 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. ### Patches This issue has been patched in v4.8.3. ### Workarounds Ensure that all proposals that pass through governance have equal length `signatures` and `calldatas` parameters.
Affected packages (2)
- npm/@openzeppelin/contracts>= 4.3.0, < 4.8.3
- npm/@openzeppelin/contracts-upgradeable>= 4.3.0, < 4.8.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-30542
- PATCHhttps://github.com/OpenZeppelin/openzeppelin-contracts
- WEBhttps://github.com/OpenZeppelin/openzeppelin-contracts/commit/8d633cb7d169f2f8595b273660b00b69e845c2fe
- WEBhttps://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.3
- WEBhttps://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-93hq-5wgc-jc82