Vulnerability CVE-2024-8947
Published: 2024-09-17

Description:
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.

Type:

CWE-416

 (Use After Free)

 References:
https://vuldb.com/?id.277765
https://vuldb.com/?ctiid.277765
https://vuldb.com/?submit.409316
https://github.com/micropython/micropython/issues/13283
https://github.com/micropython/micropython/issues/13283#issuecomment-1918479709
https://github.com/micropython/micropython/commit/4bed614e707c0644c06e117f848fa12605c711cd
https://github.com/micropython/micropython/releases/tag/v1.23.0
Copyright 2026, cxsecurity.com

 

Back to Top