CVE:CVE-2007-4430
CNNVD:CNNVD-200708-333
"Cisco IOS是思科网络设备中所使用的操作系统。
Cisco IOS处理特定的show ip bgp regexp命令参数时存在漏洞，本地攻击者可能利用此漏洞导致设备不可用。
如果用户向运行Cisco IOS的网络设备所发布的show ip bgp regexp命令中将某些正则表达式用作参数的话，就可能触发栈溢出，导致路由器重启，必须重构BGP路由表。如果连续几次出现这种情况的话，就可能导致运营商的网络不可用。
<*链接：http://www.heise-security.co.uk/news/print/94526
        http://www.cisco.com/warp/public/707/cisco-sr-20070912-regexp.shtml
        http://secunia.com/advisories/26798/
        https://puck.nether.net/pipermail/cisco-nsp/2007-August/043010.html
        http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Network%20Infrastructure&topic=WAN%
*>"
solution:Upgrade cisco cli to a higher version than *; Upgrade cisco cbos to a higher version than *,12.1,12.2,and avoid the version 12.1,12.2; Upgrade cisco ids to a higher version than *; Upgrade cisco ios to a higher version than 10.0,10.3,11.0,11.1,11.2,12.0,12.1,12.2,12.3,12.4,and avoid the version 10.0,10.3,11.0,11.1,11.2,12.0,12.1,12.2,12.3,12.4; Upgrade cisco ios_xr to a higher version than *,2.0,3.0,3.1,3.2,3.3,3.4,and avoid the version 2.0,3.0,3.1,3.2,3.3,3.4