Is CVE-2024-8947 in the CISA KEV catalog?

No. CVE-2024-8947 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-8947?

CVE-2024-8947 has a CVSS v3 base score of 5.6 (MEDIUM).

What is the EPSS score for CVE-2024-8947?

CVE-2024-8947 has an EPSS score of 1.03% (60th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-8947?

Upgrade micropython on debian 13 to 1.24.0+ds-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2024-8947

MEDIUM

5.6

CVSS v3

NVD

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.

CWE-416Use After Free

How to fix

Remediation Available

micropythonDebian

Fixed in:1.24.0+ds-1CVE-2024-8947

micropythonUbuntu

Fixed in:1.12-1ubuntu0.1~esm1USN-7472-1

Fixed in:1.17+ds-1.1ubuntu2+esm1USN-7472-1

Fixed in:1.22.1+ds-1ubuntu0.24.04.1~esm1USN-7472-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

1.03%probability of exploitation in 30 days

60thpercentile

Moderate risk: more likely to be exploited than 60% of all known CVEs.

References

Patch1

github.com

Exploit2

Third-Party Advisory2

Release Notes1

github.com

Other references1

vuldb.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-09-24.