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CVE-2023-30629

CVE-2023-30629 · Vyper's raw_call with outsize=0 and revert_on_failure=False returns incorrect success value

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

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize>0`.

CVSS 7.5 · High · EPSS 0.9% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • vyper

    Versions
    • >= 0.3.1, <= 0.3.7: Affected

    No fix published

  • vyper PyPI

    Versions
    • 0.3.1
    • 0.3.2
    • 0.3.3
    • 0.3.4
    • 0.3.5
    • 0.3.6
    • 0.3.7
    Affected ranges
    • ECOSYSTEM: ≥ 0.3.1, < 0.3.8

    Update to 0.3.8

  • vyper PyPI

    Versions
    • 0.3.1
    • 0.3.2
    • 0.3.3
    • 0.3.4
    • 0.3.5
    • 0.3.6
    • 0.3.7
    Affected ranges
    • GIT: < 851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae
    • ECOSYSTEM: ≥ 0.3.1, < 0.3.8

    Update to 0.3.8

Original sources

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