CVE-2021-41264: Improper Initialization
(updated )
OpenZeppelin Contracts is a library for smart contract development. In affected versions upgradeable contracts using UUPSUpgradeable may be vulnerable to an attack affecting uninitialized implementation contracts. A fix is included in version 4.3.2 of @openzeppelin/contracts and @openzeppelin/contracts-upgradeable. For users unable to upgrade; initialize implementation contracts using UUPSUpgradeable by invoking the initializer function (usually called initialize). An example is provided in the forum.
References
- forum.openzeppelin.com/t/security-advisory-initialize-uups-implementation-contracts/15301
- github.com/OpenZeppelin/openzeppelin-contracts/commit/024cc50df478d2e8f78539819749e94d6df60592
- github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-5vp3-v4hc-gx76
- github.com/advisories/GHSA-5vp3-v4hc-gx76
- nvd.nist.gov/vuln/detail/CVE-2021-41264
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