An attacker who has obtained code execution within a user thread is able to elevate privileges to that of the kernel. See NCC-ZEP-001 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10027
Reference (s):
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10027
- https://github.com/zephyrproject-rtos/zephyr/pull/23328
- https://github.com/zephyrproject-rtos/zephyr/pull/23499
- https://github.com/zephyrproject-rtos/zephyr/pull/23500
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-35