Bug 2256177 (CVE-2023-7152)

Summary:	CVE-2023-7152 micropython: use after free vulnerability
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:	2256178
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Description Avinash Hanwate 2023-12-29 10:46:15 UTC

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.

https://github.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26
https://github.com/micropython/micropython/issues/12887
https://vuldb.com/?ctiid.249158
https://vuldb.com/?id.249158

Comment 1 Avinash Hanwate 2023-12-29 10:46:33 UTC

Created micropython tracking bugs for this issue:

Affects: fedora-all [bug 2256178]

Comment 2 Fedora Update System 2024-04-04 00:45:52 UTC

FEDORA-2024-34aa24af35 (micropython-1.22.2-1.fc39) has been pushed to the Fedora 39 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 3 Fedora Update System 2024-04-04 00:55:18 UTC

FEDORA-2024-51e55a7065 (micropython-1.22.2-1.fc38) has been pushed to the Fedora 38 stable repository.
If problem still persists, please make note of it in this bug report.