CVE-2024-8948
"MicroPython mpz_as_bytes Heap-based Buffer Overflow Vulnerability"
Description
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.
INFO
Published Date :
Sept. 17, 2024, 7:15 p.m.
Last Modified :
Sept. 23, 2024, 6:10 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-8948.
| URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-8948 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-8948 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Sep. 23, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/micropython/micropython/commit/908ab1ceca15ee6fd0ef82ca4cba770a3ec41894 No Types Assigned https://github.com/micropython/micropython/commit/908ab1ceca15ee6fd0ef82ca4cba770a3ec41894 Patch Changed Reference Type https://github.com/micropython/micropython/issues/13041 No Types Assigned https://github.com/micropython/micropython/issues/13041 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type https://vuldb.com/?ctiid.277766 No Types Assigned https://vuldb.com/?ctiid.277766 Permissions Required Changed Reference Type https://vuldb.com/?id.277766 No Types Assigned https://vuldb.com/?id.277766 Third Party Advisory Changed Reference Type https://vuldb.com/?submit.409317 No Types Assigned https://vuldb.com/?submit.409317 Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:micropython:micropython:1.23.0:*:*:*:*:*:*:* -
CVE Received by [email protected]
Sep. 17, 2024
Action Type Old Value New Value Added Description 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. Added Reference VulDB https://vuldb.com/?id.277766 [No types assigned] Added Reference VulDB https://vuldb.com/?ctiid.277766 [No types assigned] Added Reference VulDB https://vuldb.com/?submit.409317 [No types assigned] Added Reference VulDB https://github.com/micropython/micropython/issues/13041 [No types assigned] Added Reference VulDB https://github.com/micropython/micropython/commit/908ab1ceca15ee6fd0ef82ca4cba770a3ec41894 [No types assigned] Added CWE VulDB CWE-122 Added CVSS V2 VulDB (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 VulDB AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Added CVSS V4.0 VulDB CVSS:4.0/AV:N/AC:L/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
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-8948 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-8948
weaknesses.