CVE-2024-8947

MEDIUM EPSS 59.1%
Published Sep 17, 20241y ago · Modified Jun 17, 20261w ago
6.3 CVSS 4.0
Medium
Find Similar
Published Sep 17, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.3
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
59.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 1

VendorProductVersionRange
micropythonmicropython1.22.2any

References 7

  • github.com https://github.com/micropython/micropython/commit/4bed614e707c0644c06e117f848fa12605c711cd
    Patch
  • github.com https://github.com/micropython/micropython/issues/13283
    ExploitThird Party Advisory
  • github.com https://github.com/micropython/micropython/issues/13283#issuecomment-1918479709
    ExploitThird Party Advisory
  • github.com https://github.com/micropython/micropython/releases/tag/v1.23.0
    Release Notes
  • vuldb.com https://vuldb.com/?ctiid.277765
    Permissions Required
  • vuldb.com https://vuldb.com/?id.277765
    Third Party Advisory
  • vuldb.com https://vuldb.com/?submit.409316
    Third Party Advisory

Remediation

  • github.com https://github.com/micropython/micropython/commit/4bed614e707c0644c06e117f848fa12605c711cd
    Patch