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CVE-2021-48020

CVE-2021-48020 · Vyper before 0.3.0 Memory Corruption via Internal Function Calls in Arrays

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Vyper from 0.1.0b4 before 0.3.0 contains a memory corruption vulnerability caused by an incorrect stack tip pointer when internal function calls are performed inside arrays. Contracts placing internal calls in nested array elements, external call arguments, struct literals, or raw_log topics can have memory corrupted, producing incorrect contract behavior.

CVSS 8.3 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • vyper

    Versions
    • ≥ 0.1.0b4, < 0.3.0: Affected (python)
    • 0.3.0: Not affected (python)

    Update to 0.3.0

  • vyper PyPI

    Versions
    • 0.1.0b1
    • 0.1.0b10
    • 0.1.0b11
    • 0.1.0b12
    • 0.1.0b13
    • 0.1.0b14
    • 0.1.0b15
    • 0.1.0b16
    • 0.1.0b17
    • 0.1.0b2
    • 0.1.0b3
    • 0.1.0b4
    • 0.1.0b5
    • 0.1.0b6
    • 0.1.0b7
    • 0.1.0b8
    • 0.1.0b9
    • 0.2.1
    • 0.2.10
    • 0.2.11
    • 0.2.2
    • 0.2.3
    • 0.2.4
    • 0.2.5
    • 0.2.6
    • 0.2.7
    • 0.2.8
    • 0.2.9
    Affected ranges
    • ECOSYSTEM: < 0.2.12

    Update to 0.2.12

Original sources

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