Bug 918673 (CVE-2020-20813)

Summary:	net-vpn/openvpn: DoS via crafted reset packet
Product:	Gentoo Security	Reporter:	John Helmert III <ajak>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	CONFIRMED ---
Severity:	minor	CC:	chutzpah, hydrapolic, williamh
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://www.freebuf.com/vuls/215171.html
Whiteboard:	B3 [upstream]
Package list:		Runtime testing required:	---

Description John Helmert III archtester

2023-11-27 19:36:45 UTC

CVE-2020-20813:

Control Channel in OpenVPN 2.4.7 and earlier allows remote attackers to cause a denial of service via crafted reset packet.

Advisory is only in Chinese but seems to translate well with Google
Translate. It seems to be documenting some kind of DDoS amplification
which involved OpenVPN but it's not actually clear to me based on that
whether this is a real vulnerability in OpenVPN or some kind of
misconfiguration.