Vulnerability Details CVE-2023-34234
OpenZeppelin Contracts is a library for smart contract development. By frontrunning the creation of a proposal, an attacker can become the proposer and gain the ability to cancel it. The attacker can do this repeatedly to try to prevent a proposal from being proposed at all. This impacts the `Governor` contract in v4.9.0 only, and the `GovernorCompatibilityBravo` contract since v4.3.0. This problem has been patched in 4.9.1 by introducing opt-in frontrunning protection. Users are advised to upgrade. Users unable to upgrade may submit the proposal creation transaction to an endpoint with frontrunning protection as a workaround.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 25.0%
CVSS Severity
CVSS v3 Score 5.3
References
- https://github.com/OpenZeppelin/openzeppelin-contracts/commit/d9474327a492f9f310f31bc53f38dbea56ed9a57
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-5h3x-9wvq-w4m2
- https://github.com/OpenZeppelin/openzeppelin-contracts/commit/d9474327a492f9f310f31bc53f38dbea56ed9a57
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-5h3x-9wvq-w4m2
Products affected by CVE-2023-34234
-
cpe:2.3:a:openzeppelin:contracts:4.3.0
-
cpe:2.3:a:openzeppelin:contracts:4.3.1
-
cpe:2.3:a:openzeppelin:contracts:4.3.2
-
cpe:2.3:a:openzeppelin:contracts:4.3.3
-
cpe:2.3:a:openzeppelin:contracts:4.4.0
-
cpe:2.3:a:openzeppelin:contracts:4.4.1
-
cpe:2.3:a:openzeppelin:contracts:4.4.2
-
cpe:2.3:a:openzeppelin:contracts:4.5.0
-
cpe:2.3:a:openzeppelin:contracts:4.6.0
-
cpe:2.3:a:openzeppelin:contracts:4.7.0
-
cpe:2.3:a:openzeppelin:contracts:4.7.1
-
cpe:2.3:a:openzeppelin:contracts:4.7.2
-
cpe:2.3:a:openzeppelin:contracts:4.7.3
-
cpe:2.3:a:openzeppelin:contracts:4.8.0
-
cpe:2.3:a:openzeppelin:contracts:4.8.1
-
cpe:2.3:a:openzeppelin:contracts:4.8.2
-
cpe:2.3:a:openzeppelin:contracts:4.8.3
-
cpe:2.3:a:openzeppelin:contracts:4.9.0
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.3.0
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.3.1
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.3.2
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.3.3
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.4.0
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.4.1
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.4.2
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.5.0
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.5.1
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.5.2
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.6.0
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.7.0
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.7.1
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.7.2
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.7.3
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.8.0
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.8.1
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.8.2
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.8.3
-
cpe:2.3:a:openzeppelin:contracts_upgradeable:4.9.0