CVE-2023-34234 – @openzeppelin/contracts

Package

Manager: npm
Name: @openzeppelin/contracts
Vulnerable Version: >=4.3.0 <4.9.1

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: 0.00081 pctl0.24618

Details

OpenZeppelin Contracts's governor proposal creation may be blocked by frontrunning ### Impact 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. ### Patches The problem has been patched in 4.9.1 by introducing opt-in frontrunning protection. ### Workarounds Submit the proposal creation transaction to an endpoint with frontrunning protection. ### Credit Reported by Lior Abadi and Joaquin Pereyra from Coinspect. ### References https://www.coinspect.com/openzeppelin-governor-dos/

Metadata

Created: 2023-06-08T18:03:11Z
Modified: 2023-06-08T18:03:11Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/06/GHSA-5h3x-9wvq-w4m2/GHSA-5h3x-9wvq-w4m2.json
CWE IDs: ["CWE-862"]
Alternative ID: GHSA-5h3x-9wvq-w4m2
Finding: F039
Auto approve: 1