CVE-2020-10067

Integer Overflow In is_in_region Allows User Thread To Access Kernel Memory

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A malicious userspace application can cause a integer overflow and bypass security checks performed by system call handlers. The impact would depend on the underlying system call and can range from denial of service to information leak to memory corruption resulting in code execution within the kernel. See NCC-ZEP-005 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.

Una aplicación de espacio de usuario maliciosa puede causar un desbordamiento de enteros y omitir comprobaciones de seguridad llevadas a cabo por manejadores de llamadas del sistema. El impacto dependería de la llamada del sistema subyacente y puede variar desde una denegación de servicio hasta el filtrado de información para una corrupción de memoria, resultando en una ejecución de código dentro del kernel. Consulte NCC-ZEP-005. Este problema afecta a: zephyrproject-rtos zephyr versión 1.14.1 y versiones posteriores. versión 2.1.0 y versiones posteriores.

*Credits: NCC Group for report

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-03-04 CVE Reserved
2020-05-11 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-190: Integer Overflow or Wraparound

CAPEC

References (5)

URL	Tag	Source
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10067	X_refsource_misc
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-27	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/zephyrproject-rtos/zephyr/pull/23239	2020-06-05
https://github.com/zephyrproject-rtos/zephyr/pull/23653	2020-06-05
https://github.com/zephyrproject-rtos/zephyr/pull/23654	2020-06-05

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zephyrproject Search vendor "Zephyrproject"		Zephyr Search vendor "Zephyrproject" for product "Zephyr"				1.14.1 Search vendor "Zephyrproject" for product "Zephyr" and version "1.14.1"		-		Affected
Zephyrproject Search vendor "Zephyrproject"		Zephyr Search vendor "Zephyrproject" for product "Zephyr"				2.1.0 Search vendor "Zephyrproject" for product "Zephyr" and version "2.1.0"		-		Affected