CVE-2024-8947

MicroPython objarray.c use after free

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Published Sep 17, 2024 CVSS 4.0 · 6.3 Medium EPSS 1.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-0103 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.
Github GHSA Github GHSA GHSA-pwwp-3q7j-9mx8 Use After Free in MicroPython
Ubuntu USN Ubuntu USN USN-7472-1 Micropython vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00131}

 epss

{'score': 0.00154}
Type Values Removed Values Added
CPEs cpe:2.3:a:micropython:micropython:1.22.2:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Micropython
Micropython micropython
CPEs cpe:2.3:a:micropython:micropython:*:*:*:*:*:*:*:*
Vendors & Products Micropython
Micropython micropython
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}
Type Values Removed Values Added
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. 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 Values Removed Values Added
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.
Title MicroPython objarray.c use after free
Weaknesses CWE-416
References
Metrics cvssV2_0

{'score': 5.1, 'vector': 'AV:N/AC:H/Au:N/C:P/I:P/A:P'}

cvssV3_0

{'score': 5.6, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'}

cvssV3_1

{'score': 5.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}
Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Sep 17, 2024, 8:11 PM
Reserved
Sep 17, 2024, 12:47 PM

View source JSON

Updated
Sep 17, 2024, 8:11 PM

JSON

Status
Analyzed
Published
Sep 17, 2024, 7:15 PM
Modified
Jun 17, 2026, 8:23 AM

View source JSON

No data.

No data.