Use After Free Vulnerability in MicroPython Object Array Implementation
CVE-2024-8947

8.1HIGH

Key Information:

Vendor

Micropython

Status
Micropython
Vendor
CVE Published:
17 September 2024

What is CVE-2024-8947?

A vulnerability affecting MicroPython 1.22.2 involves improper memory management within the objarray component, specifically in the file py/objarray.c. The issue arises when a bytes object is resized and inadvertently references memory that has already been freed, leading to potential exploitation through remote attacks. Patching the vulnerability is possible by upgrading to version 1.23.0, which addresses the memory handling concerns. Attack complexity is elevated, requiring careful execution for exploitation.

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References

https://vuldb.com/?id.277765
https://vuldb.com/?ctiid.277765
https://vuldb.com/?submit.409316

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

JSON
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