PYSEC-2023-191

    Dashboard / Vulnerabilities / PYSEC-2023-191

    PYSEC-2023-191

    Published: 27 Sept 2023Last Modified: 8 Nov 2023

    Summary:

    Details: Vyper is a Pythonic Smart Contract Language for the EVM. The `_abi_decode()` function does not validate input when it is nested in an expression. Uses of `_abi_decode()` can be constructed which allow for bounds checking to be bypassed resulting in incorrect results. This issue has not yet been fixed, but a fix is expected in release `0.3.10`. Users are advised to reference pull request #3626.

    References: https://github.com/vyperlang/vyper/security/advisories/GHSA-cx2q-hfxr-rj97, https://github.com/vyperlang/vyper/pull/3626

    Affected packages

    Package

    Name: vyper

    Purl: pkg:pypi/vyper

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0.3.4
    Fixed -0.3.10

    Affected versions

    0.3.10rc1
    0.3.10rc2
    0.3.10rc3
    0.3.10rc4
    0.3.10rc5
    0.3.4
    0.3.5
    0.3.6
    0.3.7
    0.3.8
    0.3.9

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2023-191 | CVE-DB