CRITICAL9.8

PYSEC-2023-256

Quick fix

PYSEC-2023-256 — micropython-copy: upgrade to the fixed version with the command below.

pip install --upgrade 'micropython-copy>=8b24aa36ba978eafc6114b6798b47b7bfecdca26'

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/micropython-copy

Introduced in: 0Fixed in: 8b24aa36ba978eafc6114b6798b47b7bfecdca26

Fixpip install --upgrade 'micropython-copy>=8b24aa36ba978eafc6114b6798b47b7bfecdca26'

References

https://vuldb.com/?id.249158[ADVISORY]
https://vuldb.com/?ctiid.249158[ADVISORY]
https://github.com/micropython/micropython/issues/12887[REPORT]
https://github.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26[FIX]