Description
The arm platform-specific code uses a signed integer comparison when validating system call numbers. 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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| zephyrproject-rtos | zephyr | 1.14.0 – < unspecified, 2.1.0 – < unspecified | unspecified |
References
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-30
- https://github.com/zephyrproject-rtos/zephyr/pull/23323
- https://github.com/zephyrproject-rtos/zephyr/pull/23535
- https://github.com/zephyrproject-rtos/zephyr/pull/23498
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10024