Juniper Junos before 10.4S14, 11.4 before 11.4R5-S2, 12.1R before 12.1R3, 12.1X44 before 12.1X44-D20, and 12.1X45 before 12.1X45-D15 on SRX Series services gateways, when a plugin using TCP proxy is configured, allows remote attackers to cause a denial of service (flow daemon crash) via an unspecified sequence of TCP packets.
http://www.securitytracker.com/id/1029177
http://secunia.com/advisories/55218
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10596