CVE:CVE-2002-2215
CNNVD:CNNVD-200212-318
PHP  4.3.0之前版本IMAP的功能中imap_header函数存在漏洞。远程攻击者借助带有大量"To"地址的电子邮件导致服务拒绝，该漏洞引发rfc822_write_address函数的错误。
solution:Upgrade php php to a higher version than 4.2.3,3.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6,3.0.7,3.0.8,3.0.9,3.0.10,3.0.11,3.0.12,3.0.13,3.0.14,3.0.15,3.0.16,3.0.17,3.0.18,4.0,4.0:beta_4_patch1,4.0:beta1,4.0:beta2,4.0:beta3,4.0:beta4,4.0:rc1,4.0:rc2,4.0.1,4.0.1:patch1,4.0.1:patch2,4.0.2,4.0.3,4.0.3:patch1,4.0.4,4.0.4:patch1,4.0.5,4.0.6,4.0.7,4.0.7:rc1,4.0.7:rc2,4.0.7:rc3,4.1.0,4.1.1,4.1.2,4.2,4.2.0,4.2.1,4.2.2,and avoid the version (,4.2.3],3.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6,3.0.7,3.0.8,3.0.9,3.0.10,3.0.11,3.0.12,3.0.13,3.0.14,3.0.15,3.0.16,3.0.17,3.0.18,4.0,4.0:beta_4_patch1,4.0:beta1,4.0:beta2,4.0:beta3,4.0:beta4,4.0:rc1,4.0:rc2,4.0.1,4.0.1:patch1,4.0.1:patch2,4.0.2,4.0.3,4.0.3:patch1,4.0.4,4.0.4:patch1,4.0.5,4.0.6,4.0.7,4.0.7:rc1,4.0.7:rc2,4.0.7:rc3,4.1.0,4.1.1,4.1.2,4.2,4.2.0,4.2.1,4.2.2