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().
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
Source: MITRE
Published: 2017-06-27
Updated: 2019-10-03
Type: CWE-415
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 5.9
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 2.2
Severity: MEDIUM