CVE-2017-7521
Unknown
Last modified
CVE-2017-7521 is a vulnerability of currently unknown severity. 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()..
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().
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openvpn | Openvpn | <= 2.3.16 |
| Openvpn | Openvpn | 2.4.0 |
| Openvpn | Openvpn | 2.4.1 |
| Openvpn | Openvpn | 2.4.2 |
References
- http://www.securityfocus.com/bid/99230Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/99230Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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().
How severe is CVE-2017-7521?
Severity scoring for CVE-2017-7521 is pending analysis.
How do I fix CVE-2017-7521?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-7521?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST