CVE-2024-8947

low-risk
Published 2024-09-17

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.

Do I need to act?

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0.19% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.6/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Micropython

Affected Vendors

Micropython

References (7)

Patch https://github.com/micropython/micropython/commit/4bed614e707c0644c06e117f848fa1...
Exploit https://github.com/micropython/micropython/issues/13283
Exploit https://github.com/micropython/micropython/issues/13283#issuecomment-1918479709
Release Notes https://github.com/micropython/micropython/releases/tag/v1.23.0
Permissions Required https://vuldb.com/?ctiid.277765
Third Party Advisory https://vuldb.com/?id.277765
Third Party Advisory https://vuldb.com/?submit.409316
24
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal