Affected: Red Hat Fast Datapath for RHEL 7, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 9, Red Hat Enterprise Linux 7, Red Hat OpenShift Container Platform 4, Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1, Red Hat OpenStack Platform 18.0

A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in a Denial of Service (DoS) for the affected system.