CVE-2020-15687

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads. This attack results in a corrupt state and Denial of Service (DoS) for previously assigned PCIe devices to the Service VM at runtime.

Una falta de restricciones del control de acceso en el componente Hypervisor del CRN Project (versiones v2.0 y v1.6.1), permite a una entidad maliciosa con acceso root en el espacio de usuario de Service VM, abusar de las Hypercalls de asignación y desasignación de PCIe por medio de ioctls y cargas útiles diseñadas. Este ataque resulta en un estado corrupto y una Denegación de Servicio (DoS) para dispositivos PCIe asignados previamente a la Service VM en tiempo de ejecución

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-07-13 CVE Reserved
2020-08-31 CVE Published
2024-07-05 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (3)

URL	Tag	Source
https://projectacrn.github.io/2.1/asa.html#addressed-in-acrn-v2-1	Third Party Advisory
https://projectacrn.github.io/latest	Third Party Advisory
https://projectacrn.github.io/latest/developer-guides/hld/split-dm.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linuxfoundation Search vendor "Linuxfoundation"		Acrn Search vendor "Linuxfoundation" for product "Acrn"				1.6.1 Search vendor "Linuxfoundation" for product "Acrn" and version "1.6.1"		-		Affected
Linuxfoundation Search vendor "Linuxfoundation"		Acrn Search vendor "Linuxfoundation" for product "Acrn"				2.0 Search vendor "Linuxfoundation" for product "Acrn" and version "2.0"		-		Affected