Improper Check for Unusual or Exceptional Conditions Affecting vyper package, versions [0, 0.4.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.05% (19th percentile)

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  • Snyk ID SNYK-PYTHON-VYPER-6210165
  • published 31 Jan 2024
  • disclosed 30 Jan 2024
  • credit pcaversaccio

How to fix?

Upgrade vyper to version 0.4.0 or higher.

Overview

vyper is a Pythonic Smart Contract Language for the EVM.

Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions due to the incorrect handling of value= keyword arguments in the raw_call function when delegatecall or staticcall are used. An attacker can mislead developers into believing that funds are being transferred with the call when, in fact, no value is sent.

CVSS Scores

version 3.1
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Snyk

Recommended
5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None
Expand this section

NVD

5.3 medium