8.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-30542

CVE-2023-30542: GovernorCompatibilityBravo may trim proposal calldata

Impact

The proposal creation entrypoint (propose) in GovernorCompatibilityBravo allows the creation of proposals with a signatures array shorter than the calldatas array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The ProposalCreated event correctly represents what will eventually execute, but the proposal parameters as queried through getActions appear to respect the original intended calldata.

Patches

This issue has been patched in v4.8.3.

Workarounds

Ensure that all proposals that pass through governance have equal length signatures and calldatas parameters.

(GitHub Advisory)

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CVE-2023-30542

CVE-2023-30542:

8.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
@openzeppelin/contracts	npm	>= 4.3.0, < 4.8.3	4.8.3
@openzeppelin/contracts-upgradeable	npm	>= 4.3.0, < 4.8.3	4.8.3

Technical Details

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Root Cause Analysis

The vulnerability manifests in the propose function where array length validation was missing. The commit diff shows a critical require(signatures.length == calldatas.length) was added to propose(), and the loop in the private _encodeCalldata helper was changed from using signatures.length to calldatas.length. These changes directly address the root cause described in the advisory - improper input validation allowing mismatched array lengths. The test case added specifically targets this scenario, confirming the function's pre-patch vulnerability.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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8.8

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2023-30542: GovernorCompatibilityBravo may trim proposal calldata

Impact

Patches

Workarounds

CVE-2023-30542:

8.8

-

Basic Information

Basic Information

Is this CVE running in your environment?

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

Vulnerability IntelligenceMiggo AI

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WAF Protection Rules

WAF Rule

Reasoning

CVE-2023-30542: GovernorCompatibilityBravo may trim proposal calldata

Impact

Patches

Workarounds

Technical Details

Basic Information

Basic Information

8.8

8.8

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

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