Vulnerability Database

289,697

Total vulnerabilities in the database

CVE-2017-7521

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().

  • Published: Jun 27, 2017
  • Updated: Apr 13, 2023
  • CVE: CVE-2017-7521
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.9
  • AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
openvpn / openvpn - 2.3.16.x
openvpn / openvpn 2.4.0 2.4.0.x
openvpn / openvpn 2.4.2 2.4.2.x
openvpn / openvpn 2.4.0-beta1 2.4.0-beta1.x
openvpn / openvpn 2.4.0-rc1 2.4.0-rc1.x
openvpn / openvpn 2.4.0-beta2 2.4.0-beta2.x
openvpn / openvpn 2.4.0-alpha2 2.4.0-alpha2.x
openvpn / openvpn 2.4.1 2.4.1.x
openvpn / openvpn 2.4.0-rc2 2.4.0-rc2.x