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.
Published 2023-06-07 18:15:10
Updated 2023-06-15 12:58:04
Source GitHub, Inc.
View at NVD,   CVE.org

Products affected by CVE-2023-34234

Exploit prediction scoring system (EPSS) score for CVE-2023-34234

EPSS FAQ
0.09%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-34234

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.3
 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.9
1.4
 NIST
5.3
 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.9
1.4
 GitHub, Inc.

CWE ids for CVE-2023-34234

  • The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
    Assigned by: security-advisories@github.com (Secondary)

References for CVE-2023-34234

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