CVE:CVE-2011-3296
CNNVD:CNNVD-201110-053
Cisco Firewall Services Module（FWSM）是美国思科（Cisco）公司的一个防火墙服务模块，它用以部署在6500系列交换机和7600系列路由器上提供流量加速功能。
Cisco Firewall Services Module(也称为FWSM) 3.1(21)之前的3.1版本，3.2(22)之前的3.2版本，4.0(16)之前的4.0版本，4.1(7)之前的4.1版本中存在漏洞。当IPv6使用时，远程攻击者可借助触发系统日志消息302015向量导致拒绝服务（内存破坏和模块崩溃或挂起），该漏洞也称为ID CSCti83875漏洞。
solution:Upgrade cisco firewall_services_module_software to a higher version than 3.1,3.1(2,3.1(3,3.1(4,3.1(5,3.1(6,3.1(7,3.1(8,3.1(9,3.1(10,3.1(11,3.1(12,3.1(13,3.1(14,3.1(15,3.1(16,3.1(17,3.1(18,3.1(19,3.1(20,3.2,3.2(1,3.2(2,3.2(3,3.2(4,3.2(5,3.2(6,3.2(7,3.2(8,3.2(9,3.2(10,3.2(11,3.2(12,3.2(13,3.2(14,3.2(15,3.2(16,3.2(17,3.2(18,3.2(19,3.2(20,3.2(21,4.0,4.0(1,4.0(2,4.0(3,4.0(4,4.0(5,4.0(6,4.0(7,4.0(8,4.0(10,4.0(11,4.0(12,4.0(13,4.0(14,4.0(15,4.1,4.1(1,4.1(2,4.1(3,4.1(4,4.1(5,4.1(6,and avoid the version 3.1,3.1(2),3.1(3),3.1(4),3.1(5),3.1(6),3.1(7),3.1(8),3.1(9),3.1(10),3.1(11),3.1(12),3.1(13),3.1(14),3.1(15),3.1(16),3.1(17),3.1(18),3.1(19),3.1(20),3.2,3.2(1),3.2(2),3.2(3),3.2(4),3.2(5),3.2(6),3.2(7),3.2(8),3.2(9),3.2(10),3.2(11),3.2(12),3.2(13),3.2(14),3.2(15),3.2(16),3.2(17),3.2(18),3.2(19),3.2(20),3.2(21),4.0,4.0(1),4.0(2),4.0(3),4.0(4),4.0(5),4.0(6),4.0(7),4.0(8),4.0(10),4.0(11),4.0(12),4.0(13),4.0(14),4.0(15),4.1,4.1(1),4.1(2),4.1(3),4.1(4),4.1(5),4.1(6); Upgrade cisco catalyst_6500 to a higher version than *; Upgrade cisco catalyst_7600 to a higher version than *