Governor proposal creation may be blocked by frontrunning in OpenZeppelin
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@openzeppelin/contractsnpm | >= 4.3.0, < 4.9.1 | 4.9.1 |
@openzeppelin/contracts-upgradeablenpm | >= 4.3.0, < 4.9.1 | 4.9.1 |
Affected products
3- ghsa-coords2 versions
>= 4.3.0, < 4.9.1+ 1 more
- (no CPE)range: >= 4.3.0, < 4.9.1
- (no CPE)range: >= 4.3.0, < 4.9.1
- Range: >=4.3.0, < 4.9.1
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-5h3x-9wvq-w4m2ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2023-34234ghsaADVISORY
- github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/66f390fa516b550838e2c2f65132b5bc2afe1cedghsaWEB
- github.com/OpenZeppelin/openzeppelin-contracts/commit/d9474327a492f9f310f31bc53f38dbea56ed9a57ghsax_refsource_MISCWEB
- github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.9.1ghsaWEB
- github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-5h3x-9wvq-w4m2ghsax_refsource_CONFIRMWEB
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