Incorrect Calculation of Numerical Quantity Affecting vyper package, versions [,0.3.8)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-PYTHON-VYPER-6124761
  • published13 Dec 2023
  • disclosed13 Dec 2023
  • creditUnknown

Introduced: 13 Dec 2023

CVE-2023-46247  (opens in a new tab)
CWE-682  (opens in a new tab)

How to fix?

Upgrade vyper to version 0.3.8 or higher.

Overview

vyper is a Pythonic Smart Contract Language for the EVM.

Affected versions of this package are vulnerable to Incorrect Calculation of Numerical Quantity due to an incorrect calculation of storage slots for large arrays. An attacker can overwrite storage variables by writing to array indices that exceed the allocated storage space.

References

CVSS Scores

version 3.1