title: MicroPython objslice.c slice_indices heap-based overflow
description: A vulnerability was found in MicroPython up to 1.21.0. It has been classified as critical. Affected is the function slice_indices of the file objslice.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.22.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-249180.
problem types: CWE-122 Heap-based Buffer Overflow
affected:
{
vendor: n/a
product: MicroPython
versions:
version: 1.13.0, status: affected
version: 1.14.0, status: affected
version: 1.15.0, status: affected
version: 1.16.0, status: affected
version: 1.17.0, status: affected
version: 1.18.0, status: affected
version: 1.19.0, status: affected
version: 1.20.0, status: affected
version: 1.21.0, status: affected
}
metrics:
cvssV3_1: [
version: 3.1
baseScore: 7.3
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
baseSeverity: HIGH
]