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Bug 918673 (CVE-2020-20813) - net-vpn/openvpn: DoS via crafted reset packet
Summary: net-vpn/openvpn: DoS via crafted reset packet
Alias: CVE-2020-20813
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [upstream]
Depends on:
Reported: 2023-11-27 19:36 UTC by John Helmert III
Modified: 2023-11-28 18:24 UTC (History)
3 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2023-11-27 19:36:45 UTC

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