CVE-2017-7522

Slackware Security Advisory - openvpn Updates

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.

Las versiones de OpenVPN anteriores a 2.4.3 y 2.3.17, son vulnerables a una denegación de servicio por parte de un atacante remoto autenticado mediante el envío de un certificado con un carácter NULL insertado.

New openvpn packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix security issues.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

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
2017-06-22 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-476: NULL Pointer Dereference

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/99230	Third Party Advisory
http://www.securitytracker.com/id/1038768	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243	2017-07-07

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"				<= 2.3.16 Search vendor "Openvpn" for product "Openvpn" and version " <= 2.3.16"		-		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
Openvpn Search vendor "Openvpn"		Openvpn Search vendor "Openvpn" for product "Openvpn"				2.4.2 Search vendor "Openvpn" for product "Openvpn" and version "2.4.2"		-		Affected