OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2.
[
{
"product": "openvpn",
"vendor": "OpenVPN Technologies, Inc",
"versions": [
{
"status": "affected",
"version": "2.3.12 and newer"
}
]
}
]