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CVE-2017-7522

Date: June 27, 2017

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.

Language: C

Severity Score

6.5

Related Resources (6)

Url: http://www.securitytracker.com/id/1038768

Url: https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243

Url: https://nvd.nist.gov/vuln/detail/CVE-2017-7522

Url: http://www.securityfocus.com/bid/99230

Url: https://security-tracker.debian.org/tracker/CVE-2017-7522

Url: https://www.mend.io/vulnerability-database/CVE-2017-7522

Severity Score

6.5

Weakness Type (CWE)

Improper Input Validation

CWE-20

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	SINGLE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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