CVE Vulnerabilities

CVE-2021-4234

Published: Jul 06, 2022 | Modified: Jul 14, 2022

CVSS 3.x

7.5

HIGH

Source:

NVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.x

5 MEDIUM

RedHat/V2

RedHat/V3

Ubuntu

Additional information

NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-4234
CWE	https://cwe.mitre.org/data/definitions/NVD-Other.html

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.

Affected Software

Name	Vendor	Start Version	End Version
Openvpn_access_server	Openvpn	*	2.11.0 (excluding)

References

https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0

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