CVE-2023-40014

描述

### Impact OpenZeppelin Contracts is a library for secure smart contract development. Starting in version 4.0.0 and prior to version 4.9.3, contracts using `ERC2771Context` along with a custom trusted forwarder may see `_msgSender` return `address(0)` in calls that originate from the forwarder with calldata shorter than 20 bytes. This combination of circumstances does not appear to be common, in particular it is not the case for `MinimalForwarder` from OpenZeppelin Contracts, or any deployed forwarder the team is aware of, given that the signer address is appended to all calls that originate from these forwarders. ### Patches The problem has been patched in v4.9.3.

如何修補 CVE-2023-40014

要修補 CVE-2023-40014,請將受影響套件升級到下列已修補版本。

• —升級至 4.9.3 或更新版本
• —升級至 4.9.3 或更新版本

CVE-2023-40014 正在被利用嗎?

低 — EPSS 為 0.6%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• >= 4.0.0, < 4.9.3
• >= 4.0.0, < 4.9.3

CVSS 分數

參考連結(9)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-40014
• PATCHgithub.com/OpenZeppelin/openzeppelin-contracts
• WEBgithub.com/OpenZeppelin/openzeppelin-contracts/blob/v4.9.3/CHANGELOG.md
• WEBgithub.com/OpenZeppelin/openzeppelin-contracts/commit/9445f96223041abf2bf08daa56f8da50b674cbcd