CVE-2017-7478

OpenVPN 2.4.0 - Denial of Service

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2.

OpenVPN versión 2.3.12 y más recientes, son vulnerables a la Denegación de Servicio no autenticada del servidor por medio de un paquete de control grande recibido. Tenga en cuenta que este problema se corrige en versiones 2.3.15 y 2.4.2.

OpenVPN version 2.4.0 suffers from an unauthenticated denial of service vulnerability.

*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

2017-04-05 CVE Reserved
2017-05-11 CVE Published
2023-05-08 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation
CWE-617: Reachable Assertion

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/98444	Vdb Entry
http://www.securitytracker.com/id/1038473	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/41993	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits	2017-08-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.3.12 Search vendor "Openvpn" for product "Openvpn" and version "2.3.12"		-		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.3.13 Search vendor "Openvpn" for product "Openvpn" and version "2.3.13"		-		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.3.14 Search vendor "Openvpn" for product "Openvpn" and version "2.3.14"		-		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.4.0 Search vendor "Openvpn" for product "Openvpn" and version "2.4.0"		-		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.4.0 Search vendor "Openvpn" for product "Openvpn" and version "2.4.0"		alpha2		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.4.0 Search vendor "Openvpn" for product "Openvpn" and version "2.4.0"		beta1		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.4.0 Search vendor "Openvpn" for product "Openvpn" and version "2.4.0"		beta2		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.4.0 Search vendor "Openvpn" for product "Openvpn" and version "2.4.0"		rc1		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.4.0 Search vendor "Openvpn" for product "Openvpn" and version "2.4.0"		rc2		Affected
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.4.1 Search vendor "Openvpn" for product "Openvpn" and version "2.4.1"		-		Affected