CVE-2022-31153

OpenZeppelin Contracts for Cairo is a library for contract development written in Cairo for StarkNet, a decentralized ZK Rollup. Version 0.2.0 is vulnerable to an error that renders account contracts unusable on live networks. This issue affects all accounts (vanilla and ethereum flavors) in the v0.2.0 release of OpenZeppelin Contracts for Cairo, which are not whitelisted on StarkNet mainnet. Only goerli deployments of v0.2.0 accounts are affected. This faulty behavior is not observed in StarkNet's testing framework. This bug has been patched in v0.2.1.

OpenZeppelin Contracts for Cairo is a library for contract development written in Cairo for StarkNet, a decentralized ZK Rollup. Version 0.2.0 is vulnerable to an error that renders account contracts unusable on live networks. This issue affects all accounts (vanilla and ethereum flavors) in the v0.2.0 release of OpenZeppelin Contracts for Cairo, which are not whitelisted on StarkNet mainnet. Only goerli deployments of v0.2.0 accounts are affected. This faulty behavior is not observed in StarkNet's testing framework. This bug has been patched in v0.2.1.

### Impact This vulnerability affects all accounts (vanilla and ethereum flavors) in the [v0.2.0 release of OpenZeppelin Contracts for Cairo](https://github.com/OpenZeppelin/cairo-contracts/releases/tag/v0.2.0), which are not whitelisted on StarkNet mainnet, so only goerli deployments of v0.2.0 accounts are affected. This faulty behavior is not observed in [StarkNet's testing framework](https://github.com/starkware-libs/cairo-lang/blob/master/src/starkware/starknet/testing/starknet.py), so don't rely on it passing to detect this issue on custom accounts. ### Patches This bug has been patched in [v0.2.1](https://github.com/OpenZeppelin/cairo-contracts/releases/tag/v0.2.1). ### References The issue is detailed in https://github.com/OpenZeppelin/cairo-contracts/issues/386. ### For more information If you have any questions or comments about this advisory: * Open an issue in [the Contracts for Cairo repo](https://github.com/OpenZeppelin/cairo-contracts/issues/new/choose) * Email us at [security@openzeppelin.com](mailto:security@openzeppelin.com)

### Impact This vulnerability affects all accounts (vanilla and ethereum flavors) in the [v0.2.0 release of OpenZeppelin Contracts for Cairo](https://github.com/OpenZeppelin/cairo-contracts/releases/tag/v0.2.0), which are not whitelisted on StarkNet mainnet, so only goerli deployments of v0.2.0 accounts are affected. This faulty behavior is not observed in [StarkNet's testing framework](https://github.com/starkware-libs/cairo-lang/blob/master/src/starkware/starknet/testing/starknet.py), so don't rely on it passing to detect this issue on custom accounts. ### Patches This bug has been patched in [v0.2.1](https://github.com/OpenZeppelin/cairo-contracts/releases/tag/v0.2.1). ### References The issue is detailed in https://github.com/OpenZeppelin/cairo-contracts/issues/386. ### For more information If you have any questions or comments about this advisory: * Open an issue in [the Contracts for Cairo repo](https://github.com/OpenZeppelin/cairo-contracts/issues/new/choose) * Email us at [security@openzeppelin.com](mailto:security@openzeppelin.com)

OpenZeppelin Contracts for Cairo es una biblioteca para el desarrollo de contratos escrita en Cairo para StarkNet, un ZK Rollup descentralizado. La versión 0.2.0 es vulnerable a un error que hace que los contratos de cuentas sean inusables en las redes vivas. Este problema afecta a todas las cuentas (sabores vanilla y ethereum) en la versión v0.2.0 de OpenZeppelin Contracts for Cairo, que no están en la lista blanca de la red principal de StarkNet. Sólo están afectadas las implementaciones goerli de las cuentas de la versión v0.2.0. Este comportamiento fallido no es observado en el marco de pruebas de StarkNet. Este bug ha sido parcheado en versión v0.2.1