VulnerabilityModified
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().
MEDIUM 5.9EPSS 3.85%
Does this matter?
Lower severity and a low EPSS score (3.85%). Track it; it rarely justifies an emergency change on its own.
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 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.85% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-415, CWE-772
- Affected
- openvpn/openvpn
- Source
- secalert@redhat.com
References
- http://www.debian.org/security/2017/dsa-3900
- http://www.securityfocus.com/bid/99230Third Party Advisory, VDB 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 Advisory, VDB Entry
- http://www.securitytracker.com/id/1038768
- https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.