OpenZeppelin 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.
CVE-2023-30541 - Medium Severity Vulnerability
contracts-3.3.0.tgz
Secure Smart Contract library for Solidity
Library home page: https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.3.0.tgz
Path to dependency file: /net-emissions-token-network/package.json
Path to vulnerable library: /net-emissions-token-network/package.json
Dependency Hierarchy: - :x: **contracts-3.3.0.tgz** (Vulnerable Library)
contracts-upgradeable-3.4.1.tgz
Secure Smart Contract library for Solidity
Library home page: https://registry.npmjs.org/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-3.4.1.tgz
Path to dependency file: /net-emissions-token-network/package.json
Path to vulnerable library: /net-emissions-token-network/package.json
Dependency Hierarchy: - :x: **contracts-upgradeable-3.4.1.tgz** (Vulnerable Library)
Found in HEAD commit: d388e16464e00b9ce84df0d247029f534a429b90
Found in base branch: main
OpenZeppelin 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.
Publish Date: 2023-04-17
URL: CVE-2023-30541
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: Low
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-mx2q-35m2-x2rh
Release Date: 2023-04-17
Fix Resolution: 4.8.3
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