MicroPython 1.21.0/1.22.0-preview extmod/modselect.c poll_set_add_fd use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.06

Summaryinfo

A vulnerability, which was classified as critical, was found in MicroPython 1.21.0/1.22.0-preview. This affects the function poll_set_add_fd of the file extmod/modselect.c. The manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2023-7152. Furthermore, there is an exploit available. It is recommended to apply a patch to fix this issue. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MicroPython 1.21.0/1.22.0-preview (Programming Language Software). Affected by this issue is the function poll_set_add_fd of the file extmod/modselect.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was presented 12/28/2023 by Junwha Hong and Wonil Jang with UNIST S2Lab as 12887 as confirmed issue (GitHub). The advisory is available at github.com. This vulnerability is handled as CVE-2023-7152. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept.

Applying the patch 8b24aa36ba978eafc6114b6798b47b7bfecdca26 is able to eliminate this problem. The bugfix is ready for download at github.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (VulDB): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 8b24aa36ba978eafc6114b6798b47b7bfecdca26

Timelineinfo

12/28/2023 🔍
12/28/2023 +0 days 🔍
12/28/2023 +0 days 🔍
01/20/2024 +23 days 🔍

Sourcesinfo

Advisory: 12887
Researcher: Junwha Hong, Wonil Jang
Organization: UNIST S2Lab
Status: Confirmed

CVE: CVE-2023-7152 (🔍)
GCVE (CVE): GCVE-0-2023-7152
GCVE (VulDB): GCVE-100-249158
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/28/2023 11:35
Updated: 01/20/2024 10:08
Changes: 12/28/2023 11:35 (44), 12/29/2023 09:58 (6), 01/20/2024 10:04 (2), 01/20/2024 10:08 (28)
Complete: 🔍
Submitter: qbit
Cache ID: 216:DE3:103

Submitinfo

Accepted

  • Submit #259231: micropython micropython v1.21.0 to v1.22.0-preview use after free (by qbit)

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