by Kastro
Paper/Archive/CVE-2023-7152

CVE-2023-7152

VulDB — MicroPython modselect.c poll_set_add_fd use after free

EPSS 0.9%CVSS 9.8
critical.is priorityof 100
41
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 59.4.594 × 2011.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
MicroPython1.21.0–CNA
MicroPython1.22.0-preview–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulDB (CNA)5.5CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
VulDB (CNA)5.5CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

writeupvuldb.com/?id.249158refvuldb.com/?ctiid.249158exploitgithub.com/micropython/micropython/issues/12887patchgithub.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26reflists.fedoraproject.org/archives/list/[email protected]/message/TEK46QAJOXXDZOWOIE2YACUOCZFWOBCKreflists.fedoraproject.org/archives/list/[email protected]/message/4E2HYWCZB5R4SHY4SZZZSFDMD64N4SOZreflists.fedoraproject.org/archives/list/[email protected]/message/D3WWY5JY4RTJE25APB4REGDUDPATG6H7