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GHSA-xrc4-737v-9q75

HighCVSS 7.5 / 10
Published Aug 18, 2022·Last modified Nov 8, 2023
Affected Components(0)

No affected components available

Description

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.

Risk Scores
Base Score
7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the integrity of the data.

Threat Intelligence
6.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Related Vulnerabilities
  • CVE-2022-31198
    Alias
  • EUVD-2022-6647
    Alias

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High severity
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