CVE-2023-7152

MEDIUM

MicroPython 1.21.0/1.22.0-preview - Use-After-Free in poll_set_add_fd

Title source: llm
STIX 2.1

Description

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.

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.249158
Permissions Required, Third Party Advisory, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.249158
Exploit, Issue Tracking exploit issue-tracking
https://github.com/micropython/micropython/issues/12887

Scores

CVSS v3 5.5
EPSS 0.0089
EPSS Percentile 54.9%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Details

CWE
CWE-416
Status published
Products (2)
micropython/micropython 1.21.0
micropython/micropython 1.22.0 preview
Published Dec 29, 2023
Tracked Since Feb 18, 2026