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    CVE-2023-7152

    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.

    Published:Dec 29, 2023
    Last Modified:Feb 13, 2025
    EPS:Dec 29, 2023
    EPSS Score:0.00089
    CVSS Score:5.5

    Affected Products

    Vendor
    Micropython
    Product
    Micropython

    Exploits

    https://github.com/micropython/micropython/issues/12887https://github.com/micropython/micropython/issues/12887

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    References

    https://github.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26
    https://github.com/micropython/micropython/issues/12887
    https://lists.fedoraproject.org/archives/list/[email protected]/message/4E2HYWCZB5R4SHY4SZZZSFDMD64N4SOZ/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/D3WWY5JY4RTJE25APB4REGDUDPATG6H7/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/TEK46QAJOXXDZOWOIE2YACUOCZFWOBCK/
    https://vuldb.com/?ctiid.249158
    https://vuldb.com/?id.249158
    https://github.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26
    https://github.com/micropython/micropython/issues/12887
    https://lists.fedoraproject.org/archives/list/[email protected]/message/4E2HYWCZB5R4SHY4SZZZSFDMD64N4SOZ/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/D3WWY5JY4RTJE25APB4REGDUDPATG6H7/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/TEK46QAJOXXDZOWOIE2YACUOCZFWOBCK/
    https://vuldb.com/?ctiid.249158
    https://vuldb.com/?id.249158

    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