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CVE-2022-31198— GovernorVotesQuorumFraction updates to quorum may affect past defeated proposals in @openzeppelin/contracts

Quick assessment

Affected
OpenZeppelin openzeppelin-contracts
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenZeppelin是一个应用软件。一个安全区块链应用的标准。 OpenZeppelin 4.3.0 到4.7.2版本、OpenZeppelin contracts-upgradeable 4.3.0 到4.7.2版本存在安全漏洞，该漏洞源于当一项提案被通过以降低法定人数要求时，如果过去的提案仅因缺乏法定人数而被否决，但它收到的票数符合新的法定人数要求，则它们可能会变得可执行。

CVSS 7.5 · High EPSS 0.77% · P55

Possible ATT&CK Techniques 1 AI

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I. Basic Information for CVE-2022-31198

Vulnerability Information
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Vulnerability Title
GovernorVotesQuorumFraction updates to quorum may affect past defeated proposals in @openzeppelin/contracts
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
数值计算不正确
Source: CVE Program / CVE List V5
Vulnerability Title
OpenZeppelin 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenZeppelin是一个应用软件。一个安全区块链应用的标准。 OpenZeppelin 4.3.0 到4.7.2版本、OpenZeppelin contracts-upgradeable 4.3.0 到4.7.2版本存在安全漏洞，该漏洞源于当一项提案被通过以降低法定人数要求时，如果过去的提案仅因缺乏法定人数而被否决，但它收到的票数符合新的法定人数要求，则它们可能会变得可执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenZeppelin openzeppelin-contracts >= 4.3.0, < 4.7.2 -

II. Public POCs for CVE-2022-31198

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III. Intelligence Information for CVE-2022-31198

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Patches & Fixes for CVE-2022-31198 (1)

Vendor Advisories for CVE-2022-31198 (1)

Same Patch Batch · OpenZeppelin · 2022-08-01 · 3 CVEs total

CVE-2022-35915 5.3 MEDIUM Unbounded gas consumption in @openzeppelin/contracts
CVE-2022-35916 5.3 MEDIUM Cross chain utilities for Arbitrum L2 see EOA calls as cross chain calls

IV. Related Vulnerabilities

Same product: openzeppelin-contracts
Same vendor: OpenZeppelin
Same weakness: CWE-682

V. Comments for CVE-2022-31198

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