CVE-2023-7152

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.

How to fix CVE-2023-7152

To remediate CVE-2023-7152, upgrade the affected package to a fixed version below.

• —upgrade to 8b24aa36ba978eafc6114b6798b47b7bfecdca26 or later
• —upgrade to 8b24aa36ba978eafc6114b6798b47b7bfecdca26 or later
• —upgrade to 8b24aa36ba978eafc6114b6798b47b7bfecdca26 or later
• —upgrade to 8b24aa36ba978eafc6114b6798b47b7bfecdca26 or later

Is CVE-2023-7152 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

• from 0, < 8b24aa36ba978eafc6114b6798b47b7bfecdca26 | from 0
• from 0, < 8b24aa36ba978eafc6114b6798b47b7bfecdca26 | from 0
• from 0, < 8b24aa36ba978eafc6114b6798b47b7bfecdca26 | from 0
• from 0, < 8b24aa36ba978eafc6114b6798b47b7bfecdca26 | from 0

CVSS scores

References (4)

• ADVISORYvuldb.com/?ctiid.249158
• ADVISORYvuldb.com/?id.249158
• PATCHgithub.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26
• REPORTgithub.com/micropython/micropython/issues/12887