CVE-2022-35916

OpenZeppelin Contracts is a library for secure smart contract development. Contracts using the cross chain utilities for Arbitrum L2, `CrossChainEnabledArbitrumL2` or `LibArbitrumL2`, will classify direct interactions of externally owned accounts (EOAs) as cross chain calls, even though they are not started on L1. This issue has been patched in v4.7.2. Users are advised to upgrade. There are no known workarounds for this issue.

OpenZeppelin Contracts is a library for secure smart contract development. Contracts using the cross chain utilities for Arbitrum L2, `CrossChainEnabledArbitrumL2` or `LibArbitrumL2`, will classify direct interactions of externally owned accounts (EOAs) as cross chain calls, even though they are not started on L1. This issue has been patched in v4.7.2. Users are advised to upgrade. There are no known workarounds for this issue.

### Impact Contracts using the cross chain utilies for Arbitrum L2, `CrossChainEnabledArbitrumL2` or `LibArbitrumL2`, will classify direct interactions of externally owned accounts (EOAs) as cross chain calls, even though they are not started on L1. This is assessed as low severity because any action taken by an EOA on the contract could also be taken by the EOA through the bridge if the issue was not present. ### Patches This issue has been patched in v4.7.2. ### References https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3578 ### For more information If you have any questions or comments about this advisory, or need assistance deploying a fix, email us at [security@openzeppelin.com](mailto:security@openzeppelin.com).

### Impact Contracts using the cross chain utilies for Arbitrum L2, `CrossChainEnabledArbitrumL2` or `LibArbitrumL2`, will classify direct interactions of externally owned accounts (EOAs) as cross chain calls, even though they are not started on L1. This is assessed as low severity because any action taken by an EOA on the contract could also be taken by the EOA through the bridge if the issue was not present. ### Patches This issue has been patched in v4.7.2. ### References https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3578 ### For more information If you have any questions or comments about this advisory, or need assistance deploying a fix, email us at [security@openzeppelin.com](mailto:security@openzeppelin.com).

OpenZeppelin Contracts es una biblioteca para el desarrollo de contratos inteligentes seguros. Los contratos que usan las utilidades de cadena cruzada para Arbitrum L2, "CrossChainEnabledArbitrumL2" o "LibArbitrumL2", clasificarán las interacciones directas de las cuentas de propiedad externa (EOA) como llamadas de cadena cruzada, aunque no sean iniciadas en L1. Este problema ha sido corregido en versión 4.7.2. Es recomendado a usuarios actualizar. No se presentan mitigaciones conocidas para este problema