OpenVPN is a multi-platform, full-featured SSL VPN solution.
OpenVPN does not properly handle control channel packets that are too small.
A remote authenticated attacker could send a specially crafted control channel packet, possibly resulting in a Denial of Service condition.
There is no known workaround at this time.
All OpenVPN users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/openvpn-2.3.6"