CVE-2023-30541

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Summary

CVECVE-2023-30541
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-04-17 22:15:00 UTC
Updated2023-04-27 18:38:00 UTC
DescriptionOpenZeppelin Contracts is a library for secure smart contract development. A function in the implementation contract may be inaccessible if its selector clashes with one of the proxy's own selectors. Specifically, if the clashing function has a different signature with incompatible ABI encoding, the proxy could revert while attempting to decode the arguments from calldata. The probability of an accidental clash is negligible, but one could be caused deliberately and could cause a reduction in availability. The issue has been fixed in version 4.8.3. As a workaround if a function appears to be inaccessible for this reason, it may be possible to craft the calldata such that ABI decoding does not fail at the proxy and the function is properly proxied through.

Risk And Classification

Problem Types: CWE-436

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openzeppelin Contracts All All All All
Application Openzeppelin Contracts Upgradeable All All All All

References

ReferenceSourceLinkTags
Release v4.8.3 · OpenZeppelin/openzeppelin-contracts · GitHub MISC github.com
Fix TransparentUpgradeableProxy's transparency by Amxx · Pull Request #4154 · OpenZeppelin/openzeppelin-contracts · GitHub MISC github.com
TransparentUpgradeableProxy clashing selector calls may not be delegated · Advisory · OpenZeppelin/openzeppelin-contracts · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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