CVE-2023-7152
A vulnerability, which was classified as critical, has been found in MicroPython 1.21.0/1.22.0-preview.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.89%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.89% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- micropython/micropython
- Source
- cna@vuldb.com
References
- https://github.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26Patch
- https://github.com/micropython/micropython/issues/12887Exploit, Issue Tracking
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4E2HYWCZB5R4SHY4SZZZSFDMD64N4SOZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D3WWY5JY4RTJE25APB4REGDUDPATG6H7/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TEK46QAJOXXDZOWOIE2YACUOCZFWOBCK/
- https://vuldb.com/?ctiid.249158Permissions Required, Third Party Advisory, VDB Entry
- https://vuldb.com/?id.249158Third Party Advisory, VDB Entry
- https://github.com/jimmo/micropython/commit/8b24aa36ba978eafc6114b6798b47b7bfecdca26Patch
- https://github.com/micropython/micropython/issues/12887Exploit, Issue Tracking
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4E2HYWCZB5R4SHY4SZZZSFDMD64N4SOZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D3WWY5JY4RTJE25APB4REGDUDPATG6H7/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TEK46QAJOXXDZOWOIE2YACUOCZFWOBCK/
- https://vuldb.com/?ctiid.249158Permissions Required, Third Party Advisory, VDB Entry
- https://vuldb.com/?id.249158Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.