OwnableTwoStep allows a pending owner to accept ownership after the original owner has renounced ownership in cairo-contracts

Cairo-Contracts are OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup. This vulnerability can lead to unauthorized ownership transfer, contrary to the original owner's intention of leaving the contract without an owner. It introduces a security risk where an unintended party (pending owner) can gain control of the contract after the original owner has renounced ownership. This could also be used by a malicious owner to simulate leaving a contract without an owner, to later regain ownership by previously having proposed himself as a pending owner. This issue has been addressed in release version 0.16.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

控制流实现总是不正确

OpenZeppelin Contracts for Cairo 安全漏洞

OpenZeppelin Contracts for Cairo是OpenZeppelin开源的一个安全智能合约开发库。 OpenZeppelin Contracts for Cairo 0.15.1之前版本存在安全漏洞，该漏洞源于未经授权的所有权转让机制，可能导致非预期方在原所有者放弃所有权后取得合同控制权。

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