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CVE-2023-42441— Vyper has incorrect re-entrancy lock when key is empty string

Quick assessment

Affected
vyperlang vyper
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.2.9 到 0.3.10版本存在安全漏洞，该漏洞源于@nonreentrant( )或@nonreentrant( )类型的锁不会在运行时重入检查。

CVSS 5.3 · Medium EPSS 0.51% · P41
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I. Basic Information for CVE-2023-42441

Vulnerability Information
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Vulnerability Title
Vyper has incorrect re-entrancy lock when key is empty string
Source: CVE Program / CVE List V5
Vulnerability Description
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM). Starting in version 0.2.9 and prior to version 0.3.10, locks of the type `@nonreentrant("")` or `@nonreentrant('')` do not produce reentrancy checks at runtime. This issue is fixed in version 0.3.10. As a workaround, ensure the lock name is a non-empty string.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
死锁
Source: CVE Program / CVE List V5
Vulnerability Title
Vyper 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.2.9 到 0.3.10版本存在安全漏洞，该漏洞源于@nonreentrant( )或@nonreentrant( )类型的锁不会在运行时重入检查。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vyperlang vyper >= 0.2.9, < 0.3.10 -

II. Public POCs for CVE-2023-42441

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III. Intelligence Information for CVE-2023-42441

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Patches & Fixes for CVE-2023-42441 (2)

Vendor Advisories for CVE-2023-42441 (1)

IV. Related Vulnerabilities

Same product: vyper
Same vendor: vyperlang
Same weakness: CWE-833

V. Comments for CVE-2023-42441

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