PT-2020-11867 · Zephyr · Zephyr

Ioannis Glaropoulos + 1 · Published 2020-05-11 · Updated 2020-06-05 · CVE-2020-10024

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions zephyr versions 1.14.0 through 2.1.0 and later versions.

Description The issue is related to the arm platform-specific code in zephyr, which uses a signed integer comparison when validating system call numbers. This allows an attacker with code execution within a user thread to elevate privileges to that of the kernel.

Recommendations For zephyr versions 1.14.0 through 2.1.0 and later versions, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-697

Related Identifiers

CVE-2020-10024

Affected Products

Zephyr

References · 7

• https://github.com/zephyrproject-rtos/zephyr/pull/23323 · Patch
• https://github.com/zephyrproject-rtos/zephyr/pull/23535 · Patch
• https://github.com/zephyrproject-rtos/zephyr/pull/23498 · Patch
• https://osv.dev/vulnerability/CVE-2020-10024 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-10024 · Security Note
• https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-30 · Note
• https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10024 · Note