A vulnerability was found in MicroPython 1.22.2. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file py/objarray.c. The manipulation leads to use after free. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. Upgrading to version 1.23.0 is able to address this issue. The identifier of the patch is 4bed614e707c0644c06e117f848fa12605c711cd. It is recommended to upgrade the affected component. In micropython objarray component, when a bytes object is resized and copied into itself, it may reference memory that has already been freed.

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7472-1 advisory.

    Junwha Hong and Wonil Jang discovered that Micropython incorrectly handled the length of a buffer in     mp_vfs_umount, leading to a heap-based buffer

    overflow vulnerability. If a user or automated system were tricked into opening a specially crafted file,     an attacker could possibly use this issue to cause a denial of service or possibly execute arbitrary code.
    (CVE-2024-8946)

    Junwha Hong and Wonil Jang discovered that Micropython incorrectly handled memory, leading to a use-after-     free vulnerability under certain

    circumstances. If a user or automated system were tricked into opening a

    specially crafted file, an attacker could possibly use this issue to cause a denial of service or possibly     execute arbitrary code.

    (CVE-2024-8947)

    It was discovered that Middleware USB Host MCU Component incorrectly handled memory, leading to a buffer     overflow vulnerability, If a user or

    automated system were tricked into opening a specially crafted file, an

    attacker could possibly use this issue to cause a denial of service or possibly execute arbitrary code.
    (CVE-2021-42553)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-cd5c1dfa94 advisory.

    Update to 1.23.0

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-f9ca680ecd advisory.

    Update to 1.23.0

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-9c81ad492a advisory.

    Update to 1.23.0

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
235069	Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : Micropython vulnerabilities (USN-7472-1)	Nessus	Ubuntu Local Security Checks	medium
211423	Fedora 41 : micropython (2024-cd5c1dfa94)	Nessus	Fedora Local Security Checks	medium
209924	Fedora 40 : micropython (2024-f9ca680ecd)	Nessus	Fedora Local Security Checks	medium
209920	Fedora 39 : micropython (2024-9c81ad492a)	Nessus	Fedora Local Security Checks	medium

Detections

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CVE-2024-8947

medium

Tenable Plugins

medium

medium

medium

medium