CVE-2023-42441

CVSS 3.1 Score 5.3 of 10 (medium)

Details

Published Sep 18, 2023
Updated: Sep 21, 2023
CWE ID 667
CWE ID 833

Summary

CVE-2023-42441 is a vulnerability affecting Vyper, a Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM). Versions prior to 0.3.10 are vulnerable as locks of the type `@nonreentrant("")` or `@nonreentrant('')` do not produce reentrancy checks at runtime. The issue has been fixed in version 0.3.10, but as a workaround, users should ensure that the lock name is a non-empty string. This vulnerability has a base severity of MEDIUM and an exploitability score of 3.9, with low integrity impact and no confidentiality impact. The attack vector is through the network, and no user interaction or privileges are required for exploitation. The vulnerability poses a potential danger to organizations using affected versions of Vyper, as it could be exploited to execute unauthorized code or disrupt smart contracts on the Ethereum network.

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