PYSEC-2023-256

    Dashboard / Vulnerabilities / PYSEC-2023-256

    PYSEC-2023-256

    Published: 29 Dec 2023Last Modified: 29 Feb 2024

    Summary:

    Details: A vulnerability, which was classified as critical, has been found in MicroPython 1.21.0/1.22.0-preview. Affected by this issue is the function poll_set_add_fd of the file extmod/modselect.c. The manipulation leads to use after free. The exploit has been disclosed to the public and may be used. The patch is identified as 8b24aa36ba978eafc6114b6798b47b7bfecdca26. It is recommended to apply a patch to fix this issue. VDB-249158 is the identifier assigned to this vulnerability.

    References: https://vuldb.com/?id.249158, https://vuldb.com/?ctiid.249158, https://github.com/micropython/micropython/issues/12887, https://github.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26

    Affected packages

    Package

    Name: micropython-copy

    Purl: pkg:pypi/micropython-copy

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -8b24aa36ba978eafc6114b6798b47b7bfecdca26

    Affected versions

    0.0.1
    0.0.2

    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-2023-256 | CVE-DB