CVE-2017-7521

MEDIUM

OpenVPN < 2.4.3 and < 2.3.17 - Remote Denial of Service via Memory Leak in extract_x509_extension()

Title source: llm
STIX 2.1

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().

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038768
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/99230
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2017/dsa-3900

Scores

CVSS v3 5.9
EPSS 0.0386
EPSS Percentile 88.8%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-400 CWE-415 CWE-772
Status published
Products (6)
openvpn/openvpn 2.4.0 (6 CPE variants)
openvpn/openvpn 2.4.1
openvpn/openvpn 2.4.2
openvpn/openvpn < 2.3.16
OpenVPN Technologies, Inc/OpenVPN before 2.3.17
OpenVPN Technologies, Inc/OpenVPN before 2.4.3
Published Jun 27, 2017
Tracked Since Feb 18, 2026