In some circumstances, on F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, any 11.6.x or 11.5.x release, or 11.2.1, TCP DNS profile allows excessive buffering due to lack of flow control.Referenceshttps://support.f5.com/csp/article/K44200194http://www.securityfocus.com/bid/103211
