CVE:CVE-2000-0489
CNNVD:CNNVD-199909-012
FreeBSD， NetBSD以及OpenBSD 存在漏洞。攻击者通过使用socketpair函数创建大量套接字对，并用setsockopt设置大规模缓存并写入内容的方法导致拒绝服务。
solution:Upgrade freebsd freebsd to a higher version than 3.0,3.1,3.2,3.3,3.4,3.5,4.0,5.0:alpha,and avoid the version 3.0,3.1,3.2,3.3,3.4,3.5,4.0,5.0:alpha; Upgrade netbsd netbsd to a higher version than 1.4,1.4.1,1.4.2,and avoid the version 1.4,1.4.1,1.4.2; Upgrade openbsd openbsd to a higher version than 2.5,2.6,2.7,and avoid the version 2.5,2.6,2.7