Vulnerability CVE-2017-7521
Published: 2017-06-27

Description:
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension().

See advisories in our WLB2 database:
Topic
Author
Date
High
OpenVPN Multiple Vulnerabilities post-audit bug bonanza
Guido Vranken
21.06.2017

Type:

CWE-772

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Openvpn -> Openvpn 

 References:
http://www.debian.org/security/2017/dsa-3900
http://www.securityfocus.com/bid/99230
http://www.securitytracker.com/id/1038768
https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243
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