by Kastro
Paper/Archive/CVE-2021-41264

CVE-2021-41264

OpenZeppelin openzeppelin-contracts — UUPSUpgradeable vulnerability in OpenZeppelin Contracts

EPSS 1%CVSS 9.8
critical.is priorityof 100
44
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 74.0.740 × 2014.8No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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](https://forum.openzeppelin.com/t/security-advisory-initialize-uups-implementation-contracts/15301).

Affected

ProductAffectedFixed inSource
openzeppelin-contracts>= 4.1.0 < 4.3.2–CNA

Scores by source

GitHub_M (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgithub.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-5vp3-v4hc-gx76refgithub.com/OpenZeppelin/openzeppelin-contracts/commit/024cc50df478d2e8f78539819749e94d6df60592refforum.openzeppelin.com/t/security-advisory-initialize-uups-implementation-contracts/15301