openvpn -- denial of service: malicious authenticated "tap" client can deplete server virtual memory

ID 1986449A-8B74-40FA-B7CC-0D8DEF8AAD65
Type freebsd
Reporter FreeBSD
Modified 2005-07-27T00:00:00


James Yonan reports:

A malicious [authenticated] client in "dev tap" ethernet bridging mode could theoretically flood the server with packets appearing to come from hundreds of thousands of different MAC addresses, causing the OpenVPN process to deplete system virtual memory as it expands its internal routing table.