CVE-2021-41264 – @openzeppelin/contracts-upgradeable

Package

Manager: npm
Name: @openzeppelin/contracts-upgradeable
Vulnerable Version: >=4.1.0 <4.3.2

Severity

Level: Critical

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

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

EPSS: 0.00641 pctl0.6968

Details

UUPSUpgradeable vulnerability in @openzeppelin/contracts ### Impact Upgradeable contracts using `UUPSUpgradeable` may be vulnerable to an attack affecting uninitialized implementation contracts. We will update this advisory with more information soon. ### Patches A fix is included in version 4.3.2 of `@openzeppelin/contracts` and `@openzeppelin/contracts-upgradeable`. ### Workarounds Initialize implementation contracts using `UUPSUpgradeable` by invoking the initializer function (usually called `initialize`). An example is provided [in the forum](https://forum.openzeppelin.com/t/security-advisory-initialize-uups-implementation-contracts/15301). ### References [Post-mortem](https://forum.openzeppelin.com/t/uupsupgradeable-vulnerability-post-mortem/15680). ### For more information If you have any questions or comments about this advisory, or need assistance executing the mitigation, email us at security@openzeppelin.com.

Metadata

Created: 2021-09-15T20:23:17Z
Modified: 2021-11-16T21:44:47Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-5vp3-v4hc-gx76/GHSA-5vp3-v4hc-gx76.json
CWE IDs: ["CWE-665"]
Alternative ID: GHSA-5vp3-v4hc-gx76
Finding: F138
Auto approve: 1