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Security Advisories: GSA_kwCzR0hTQS1teDJxLTM1bTIteDJyaM4AAy0V

OpenZeppelin Contracts TransparentUpgradeableProxy clashing selector calls may not be delegated

Impact

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.

Patches

The issue has been fixed in v4.8.3.

Workarounds

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.

References

https://github.com/OpenZeppelin/openzeppelin-contracts/pull/4154

Permalink: https://github.com/advisories/GHSA-mx2q-35m2-x2rh
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1teDJxLTM1bTIteDJyaM4AAy0V
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 2 months ago
Updated: about 2 months ago


CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Identifiers: GHSA-mx2q-35m2-x2rh, CVE-2023-30541
References:

Affected Packages

npm:@openzeppelin/contracts-upgradeable
Versions: >= 3.2.0, < 4.8.3
Fixed in: 4.8.3
npm:@openzeppelin/contracts
Versions: >= 3.2.0, < 4.8.3
Fixed in: 4.8.3