CVE-2020-10021

Out-of-bounds write in USB Mass Storage with unaligned sizes

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Out-of-bounds Write in the USB Mass Storage memoryWrite handler with unaligned Sizes See NCC-ZEP-024, NCC-ZEP-025, NCC-ZEP-026 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.

Una Escritura fuera de límites en el Almacenamiento Masivo USB en el manejador memoryWrite con Tamaños no alineados. Consulte NCC-ZEP-024, NCC-ZEP-025, NCC-ZEP-026. 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

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-03-03 CVE Reserved
2020-05-11 CVE Published
2023-03-08 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (5)

URL	Tag	Source
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10021	X_refsource_misc
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-26	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/zephyrproject-rtos/zephyr/pull/23240	2020-06-05
https://github.com/zephyrproject-rtos/zephyr/pull/23455	2020-06-05
https://github.com/zephyrproject-rtos/zephyr/pull/23456	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 < 2.2.0 Search vendor "Zephyrproject" for product "Zephyr" and version " >= 2.1.0 < 2.2.0"		-		Affected