CVE-2022-31198

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Summary

CVECVE-2022-31198
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-01 21:15:00 UTC
Updated2022-12-06 19:51:00 UTC
DescriptionOpenZeppelin Contracts is a library for secure smart contract development. 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 requirements, 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. This issue has been patched in v4.7.2. Users are advised to upgrade. Users unable to upgrade should consider avoiding lowering quorum requirements if a past proposal was defeated for lack of quorum.

Risk And Classification

Problem Types: CWE-682

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openzeppelin Contracts All All All All
Application Openzeppelin Contracts-upgradeable All All All All
Application Openzeppelin Contracts Upgradeable All All All All

References

ReferenceSourceLinkTags
GovernorVotesQuorumFraction updates to quorum may affect past defeated proposals · Advisory · OpenZeppelin/openzeppelin-contracts · GitHub CONFIRM github.com
Keep track of historical quorum values by Amxx · Pull Request #3561 · OpenZeppelin/openzeppelin-contracts · GitHub MISC github.com
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