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MEDIUM5.3

PYSEC-2024-151

Quick fix

PYSEC-2024-151 — vyper: upgrade to the fixed version with the command below.

pip install --upgrade 'vyper>=0.4.0b1'

Details

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. Vyper compiler allows passing a value in builtin raw_call even if the call is a delegatecall or a staticcall. But in the context of delegatecall and staticcall the handling of value is not possible due to the semantics of the respective opcodes, and vyper will silently ignore the value= argument. If the semantics of the EVM are unknown to the developer, he could suspect that by specifying the `value` kwarg, exactly the given amount will be sent along to the target. This vulnerability affects 0.3.10 and earlier versions.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/vyper
Introduced in: 0Fixed in: 0.4.0b1
Fixpip install --upgrade 'vyper>=0.4.0b1'

References