CVE-2024-8947 Information

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.

Reference

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