CVE-2024-8948

A vulnerability was found in MicroPython 1.23.0. It has been rated as critical. Affected by this issue is the function mpz_as_bytes of the file py/objint.c. The manipulation leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The patch is identified as 908ab1ceca15ee6fd0ef82ca4cba770a3ec41894. It is recommended to apply a patch to fix this issue. In micropython objint component, converting zero from int to bytes leads to heap buffer-overflow-write at mpz_as_bytes.

CVSS v3 7.3 HIGH
CVSS v2.0 7.5 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/micropython/micropython/commit/908ab1ceca15ee6fd0ef82ca4cba770a3ec41894	Patch
https://github.com/micropython/micropython/issues/13041	Exploit Issue Tracking Third Party Advisory
https://vuldb.com/?ctiid.277766	Permissions Required
https://vuldb.com/?id.277766	Third Party Advisory
https://vuldb.com/?submit.409317	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:micropython:micropython:1.23.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-09-17 19:15

Updated : 2024-09-23 18:10

NVD link : CVE-2024-8948

Mitre link : CVE-2024-8948

CVE.ORG link : CVE-2024-8948

JSON object : View

Products Affected

micropython

micropython

CWE

CWE-122

Heap-based Buffer Overflow

CWE-787

Out-of-bounds Write

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