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CVE-2017-7522 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243	CVE	Vendor Advisory
http://www.securityfocus.com/bid/99230	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038768	CVE
https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243	[email protected]	Vendor Advisory
http://www.securityfocus.com/bid/99230	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038768	[email protected]

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-476	NULL Pointer Dereference	[email protected]
CWE-20	Improper Input Validation	[email protected]

Affected Products

Product	Versions
openvpn openvpn	<= 2.3.16 2.4.0 2.4.0 alpha2 2.4.0 beta1 2.4.0 beta2
CPE cpe:2.3:a:openvpn:openvpn:::::::: 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:::::::* Remediation No remediation found in references.

Product

Versions

openvpn openvpn

<= 2.3.16

2.4.0

2.4.0 alpha2

2.4.0 beta1

2.4.0 beta2

CPE

cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 9, 2019	CVE Modified	[email protected]
Jul 7, 2017	CVE Modified	[email protected]
Jun 30, 2017	Initial Analysis	[email protected]
Jun 29, 2017	CVE Modified	[email protected]