Improper Input Validation Affecting vyper package, versions [0.3.4, 0.3.10rc4)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-PYTHON-VYPER-5920076
  • published27 Sept 2023
  • disclosed26 Sept 2023
  • credittrocher

Introduced: 26 Sep 2023

CVE-2023-42460  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade vyper to version 0.3.10rc4 or higher.

Overview

vyper is a Pythonic Smart Contract Language for the EVM.

Affected versions of this package are vulnerable to Improper Input Validation in the _abi_decode() function. An attacker can manipulate the output of the function by constructing an example where the output is not internally passed to make_setter or other input validating routine.

References

CVSS Scores

version 3.1