Vulnerability 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().
CVSS Score
5.9
MEDIUM
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openvpn | Openvpn | <= 2.3.16 |
Related Weaknesses (CWE)
References
- http://www.debian.org/security/2017/dsa-3900
- http://www.securityfocus.com/bid/99230Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038768
- https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243Vendor Advisory
- http://www.debian.org/security/2017/dsa-3900
- http://www.securityfocus.com/bid/99230Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038768
- https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243Vendor Advisory
FAQ
What is CVE-2017-7521?
CVE-2017-7521 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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().
How severe is CVE-2017-7521?
CVE-2017-7521 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-7521?
Check the references section above for vendor advisories and patch information. Affected products include: Openvpn Openvpn.