CVE-2021-4234

OpenVPN Access Server 2.10 and prior versions are susceptible to resending multiple packets in a response to a reset packet sent from the client which the client again does not respond to, resulting in a limited amplification attack.
References
Configurations

Configuration 1 (hide)

cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*

History

14 Jul 2022, 12:15

Type Values Removed Values Added
First Time Openvpn openvpn Access Server
Openvpn
CWE NVD-CWE-Other
References (MISC) https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0 - (MISC) https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0 - Release Notes, Vendor Advisory
CVSS v2 : unknown
v3 : unknown
v2 : 5.0
v3 : 7.5
CPE cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*

06 Jul 2022, 20:15

Type Values Removed Values Added
New CVE

Information

Published : 2022-07-06 20:15

Updated : 2023-12-10 14:35


NVD link : CVE-2021-4234

Mitre link : CVE-2021-4234

CVE.ORG link : CVE-2021-4234


JSON object : View

Products Affected

openvpn

  • openvpn_access_server
CWE
NVD-CWE-Other CWE-406

Insufficient Control of Network Message Volume (Network Amplification)