CVE-2020-10024 Information

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://docs.zephyrproject.org/latest/security/vulnerabilities.htmlcve-2020-10024 https://github.com/zephyrproject-rtos/zephyr/pull/23323 https://github.com/zephyrproject-rtos/zephyr/pull/23498 https://github.com/zephyrproject-rtos/zephyr/pull/23535 https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-30

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8