CVE-2022-31198
OpenZeppelin Contracts's GovernorVotesQuorumFraction updates to quorum may affect past defeated proposals
描述
### Impact This issue concerns instances of Governor that use the module `GovernorVotesQuorumFraction`, a mechanism that determines quorum requirements as a percentage of the voting token's total supply. In affected instances, when a proposal is passed to lower the quorum requirement, past proposals may become executable if they had been defeated only due to lack of quorum, and the number of votes it received meets the new quorum requirement. Analysis of instances on chain found only one proposal that met this condition, and we are actively monitoring for new occurrences of this particular issue. ### Patches This issue has been patched in v4.7.2. ### Workarounds Avoid lowering quorum requirements if a past proposal was defeated for lack of quorum. ### References https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3561 ### For more information If you have any questions or comments about this advisory, or need assistance deploying the fix, email us at [security@openzeppelin.com](mailto:security@openzeppelin.com).
如何修補 CVE-2022-31198
要修補 CVE-2022-31198,請將受影響套件升級到下列已修補版本。
- —升級至 4.7.2 或更新版本
- —升級至 4.7.2 或更新版本
CVE-2022-31198 正在被利用嗎?
低 — EPSS 為 0.6%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 4.3.0, < 4.7.2
- >= 4.3.0, < 4.7.2