Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2017-7520

Severity CVSS v4.0:
Pending analysis
Type:
CWE-200 Information Leak / Disclosure
Publication date:
27/06/2017
Last modified:
20/04/2025

Description

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.40 HIGH
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): High

Base Score 3.x
7.40
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:H/Au:N/C:P/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.00 MEDIUM
Vector: AV:N/AC:H/Au:N/C:P/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): Physical

Base Score 2.0
4.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* 2.3.16 (including)
cpe:2.3:a:openvpn:openvpn:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:openvpn:openvpn:2.4.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:openvpn:openvpn:2.4.0:beta1:*:*:*:*:*:*
cpe:2.3:a:openvpn:openvpn:2.4.0:beta2:*:*:*:*:*:*
cpe:2.3:a:openvpn:openvpn:2.4.0:rc1:*:*:*:*:*:*
cpe:2.3:a:openvpn:openvpn:2.4.0:rc2:*:*:*:*:*:*
cpe:2.3:a:openvpn:openvpn:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:openvpn:openvpn:2.4.2:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools