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.securityfocus.com/bid/99230
http://www.debian.org/security/2017/dsa-3900
https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243
http://www.securitytracker.com/id/1038768
Source: Mitre, NVD
Published: 2017-06-27
Updated: 2025-04-20
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
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
EPSS: 0.00523