CVE-2023-7158

Summary

CVE-2023-7158 is a critical vulnerability affecting MicroPython versions up to 1.21.0. The issue lies in the slice_indices function of the objslice.c file, leading to a heap-based buffer overflow. An attacker can exploit this vulnerability remotely, making it a significant security risk. The exploit for this vulnerability has been disclosed to the public, increasing the threat level. Upgrading to MicroPython 1.22.0 is recommended to mitigate this issue and prevent potential attacks.

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