CVE-2022-39384

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Summary

CVECVE-2022-39384
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-11-04 22:15:00 UTC
Updated2022-12-06 19:51:00 UTC
DescriptionOpenZeppelin Contracts is a library for secure smart contract development. Before version 4.4.1 but after 3.2.0, initializer functions that are invoked separate from contract creation (the most prominent example being minimal proxies) may be reentered if they make an untrusted non-view external call. Once an initializer has finished running it can never be re-executed. However, an exception put in place to support multiple inheritance made reentrancy possible in the scenario described above, breaking the expectation that there is a single execution. Note that upgradeable proxies are commonly initialized together with contract creation, where reentrancy is not feasible, so the impact of this issue is believed to be minor. This issue has been patched, please upgrade to version 4.4.1. As a workaround, avoid untrusted external calls during initialization.

Risk And Classification

Problem Types: CWE-665

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openzeppelin Contracts All All All All
Application Openzeppelin Contracts-upgradeable All All All All
Application Openzeppelin Contracts Upgradeable All All All All

References

ReferenceSourceLinkTags
Update initializer modifier to prevent reentrancy during initialization by Amxx · Pull Request #3006 · OpenZeppelin/openzeppelin-contracts · GitHub MISC github.com
Initializer reentrancy may lead to double initialization · Advisory · OpenZeppelin/openzeppelin-contracts · GitHub CONFIRM github.com
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