CVE:CVE-1999-0878
CNNVD:CNNVD-199908-046
WU-FTPD和相关FTP服务器存在缓冲区溢出漏洞，远程攻击者可以通过MAPPING_CHDIR获得根权限。
solution:Upgrade beroftpd beroftpd to a higher version than 1.3.2,1.3.3,1.3.4,and avoid the version 1.3.2,1.3.3,1.3.4; Upgrade washington_university wu-ftpd to a higher version than 2.4.2_beta18_vr4,2.4.2_beta18_vr5,2.4.2_beta18_vr6,2.4.2_beta18_vr8,2.4.2_beta18_vr9,2.4.2_beta18_vr10,2.4.2_beta18_vr11,2.4.2_beta18_vr12,2.4.2_beta18_vr13,2.4.2_beta18_vr14,2.4.2_beta18_vr15,2.4.2_vr16,2.4.2_vr17,2.5,and avoid the version 2.4.2_beta18_vr4,2.4.2_beta18_vr5,2.4.2_beta18_vr6,2.4.2_beta18_vr8,2.4.2_beta18_vr9,2.4.2_beta18_vr10,2.4.2_beta18_vr11,2.4.2_beta18_vr12,2.4.2_beta18_vr13,2.4.2_beta18_vr14,2.4.2_beta18_vr15,2.4.2_vr16,2.4.2_vr17,2.5