CVE-2022-31198

GovernorVotesQuorumFraction updates to quorum may affect past defeated proposals in @openzeppelin/contracts

Description

OpenZeppelin 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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.10%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: OpenZeppelin openzeppelin-contracts
Published at:
Updated at:

References

Link Tags
https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-xrc4-737v-9q75 third party advisory
https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3561 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-31198?
CVE-2022-31198 has been scored as a high severity vulnerability.
How to fix CVE-2022-31198?
To fix CVE-2022-31198, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-31198 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-31198 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-31198?
CVE-2022-31198 affects OpenZeppelin openzeppelin-contracts.
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