CVE-2023-32059

Vyper vulnerable to incorrect ordering of arguments for kwargs passed to internal calls

State
Published
Severity
7.5 High
Published
May 11, 2023
Updated
Jan 24, 2025
Reserved
May 1, 2023

Read the record on cve.org

Description

Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, internal calls with default arguments are compiled incorrectly. Depending on the number of arguments provided in the call, the defaults are added not right-to-left, but left-to-right. If the types are incompatible, typechecking is bypassed. The ability to pass kwargs to internal functions is an undocumented feature that is not well known about. The issue is patched in version 0.3.8.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NGitHub_M
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NCISA-ADP

Weaknesses

  • CWE-683 Function Call With Incorrect Order of Arguments

Affected Products

ProductVersions
vypervyperlang
  • < 0.3.8Affected

References

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