CVE-2020-10717

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version >= v5.0. Virtio-fs is meant to share a host file system directory with a guest via virtio-fs device. If the guest opens the maximum number of file descriptors under the shared directory, a denial of service may occur. This flaw allows a guest user/process to cause this denial of service on the host.

Se encontró un fallo potencial de DoS en la implementación del demonio del sistema de archivos compartido virtio-fs (virtiofsd) de QEMU versiones anteriores a la versión v5.0. Virtio-fs está destinado a compartir un directorio del sistema de archivos host con un invitado por medio de un dispositivo virtio-fs. Si el invitado abre el número máximo de descriptores de archivo en el directorio compartido, puede ocurrir una denegación de servicio. Este fallo permite a un usuario y proceso invitado causar esta denegación de servicio en el host.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Local

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

2020-03-20 CVE Reserved
2020-05-04 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (5)

URL	Tag	Source
https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00141.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10717	2023-11-07
https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00143.html	2023-11-07
https://www.openwall.com/lists/oss-security/2020/05/04/1	2023-11-07

URL	Date	SRC
https://security.gentoo.org/glsa/202011-09	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				>= 5.0 < 5.0.1 Search vendor "Qemu" for product "Qemu" and version " >= 5.0 < 5.0.1"		-		Affected