Medium severity5.9NVD Advisory· Published Jun 27, 2017· Updated May 13, 2026
CVE-2017-7521
CVE-2017-7521
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().
Affected products
10before 2.4.3+ 9 more
- (no CPE)range: before 2.4.3
- cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*range: <=2.3.16
- cpe:2.3:a:openvpn:openvpn:2.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:openvpn:openvpn:2.4.0:alpha2:*:*:*:*:*:*
- cpe:2.3:a:openvpn:openvpn:2.4.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:openvpn:openvpn:2.4.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:openvpn:openvpn:2.4.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:openvpn:openvpn:2.4.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:openvpn:openvpn:2.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:openvpn:openvpn:2.4.2:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- www.securityfocus.com/bid/99230nvdThird Party AdvisoryVDB Entry
- community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243nvdVendor Advisory
- www.debian.org/security/2017/dsa-3900nvd
- www.securitytracker.com/id/1038768nvd
News mentions
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