Use After Free in Micropython
CVE-2023-7152
A vulnerability, which was classified as critical, has been found in MicroPython 1.21.0/1.22.0-preview. Affected by this issue is the function poll_set_add_fd of the file extmod/modselect.c. The manipulation leads to use after free. The exploit has been disclosed to the public and may be used. The patch is identified as 8b24aa36ba978eafc6114b6798b47b7bfecdca26. It is recommended to apply a patch to fix this issue. VDB-249158 is the identifier assigned to this vulnerability.
Vulnerability class: Use-After-Free
EPSS: 0.009 (55.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Micropython — versions 1.21.0, 1.22.0
- N/a Micropython — versions 1.21.0, 1.22.0-preview
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry, Third Party Advisory)
- cna@vuldb.com (issue-tracking, Exploit, exploit, Issue Tracking)
- cna@vuldb.com (Patch, patch)
- cna@vuldb.com
- cna@vuldb.com
- cna@vuldb.com
Frequently asked questions
- What is CVE-2023-7152?
- CVE-2023-7152 is a medium-severity vulnerability in Micropython, classified under Use After Free. CVSS score: 5.5/10. Published 2023-12-29.
- How severe is CVE-2023-7152?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-7152 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.