CVE:CVE-2009-1893
CNNVD:CNNVD-200907-279
Red Hat Enterprise Linux是美国红帽（Red Hat）公司的面向企业用户的Linux操作系统
Red Hat Enterprise Linux存在后置链接漏洞，该漏洞源于dhcpdinit脚本中使用的临时文件不安全。
solution:Upgrade redhat enterprise_linux to a higher version than 3.0,and avoid the version 3.0; Upgrade isc dhcp to a higher version than 3.0.1:rc1,3.0.1:rc10,3.0.1:rc11,3.0.1:rc12,3.0.1:rc13,3.0.1:rc14,3.0.1:rc2,3.0.1:rc5,3.0.1:rc6,3.0.1:rc7,3.0.1:rc8,3.0.1:rc9,and avoid the version 3.0.1:rc1,3.0.1:rc10,3.0.1:rc11,3.0.1:rc12,3.0.1:rc13,3.0.1:rc14,3.0.1:rc2,3.0.1:rc5,3.0.1:rc6,3.0.1:rc7,3.0.1:rc8,3.0.1:rc9