Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1wd3dwLTNxN2otOW14OM4AA_nB

Use After Free in MicroPython

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.

Permalink: https://github.com/advisories/GHSA-pwwp-3q7j-9mx8
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1wd3dwLTNxN2otOW14OM4AA_nB
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 1 month ago
Updated: 23 days ago

CVSS Score: 5.6
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Identifiers: GHSA-pwwp-3q7j-9mx8, CVE-2024-8947
References:

• https://nvd.nist.gov/vuln/detail/CVE-2024-8947
• 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
• https://vuldb.com/?ctiid.277765
• https://vuldb.com/?id.277765
• https://vuldb.com/?submit.409316
• https://github.com/pypa/advisory-database/tree/main/vulns/micropython-copy/PYSEC-2024-92.yaml
• https://github.com/pypa/advisory-database/tree/main/vulns/micropython-io/PYSEC-2024-94.yaml
• https://github.com/advisories/GHSA-pwwp-3q7j-9mx8

Repository: https://github.com/micropython/micropython
Blast Radius: 1.7

Affected Packages