CVE-2023-7152: PYSEC-2023-258 - 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 functi

CVE-2023-7152 · Severity: low · CVSS 3.1 · Published 2023-12-29

Technologies: micropython-io (PyPI), micropython-copy (PyPI). Vendors: PyPI.

Executive brief

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.

Affected products

PyPI micropython-os
PyPI micropython-io
PyPI micropython-copy
PyPI micropython-select

Related threats

PYSEC-2024-94 - A vulnerability was found in MicroPython 1.22.2. It has been declared as critical. Affected by this vulnerability is an unknown functionalit
PYSEC-2024-96 - A vulnerability was found in MicroPython 1.23.0. It has been classified as critical. Affected is the function mp_vfs_umount of the file extm
PYSEC-2024-89 - A vulnerability was found in MicroPython 1.23.0. It has been rated as critical. Affected by this issue is the function mpz_as_bytes of the f