CVE:CVE-2004-0435
CNNVD:CNNVD-200408-144
FreeBSD的msync(2)系统调用是应用程序用来请求将映射内存中的数据写回磁盘。
msync(2)系统调用实现存在编程错误，本地攻击者可以利用这个漏洞破坏系统文件，或更改敏感配置文件等攻击。
msync(2)系统调用在进行MS_INVALIDATE操作时存在问题，可导致在虚拟内存系统和磁盘内容之间产生缓存一致性问题，可能利用这个漏洞破坏系统文件。
solution:Upgrade freebsd freebsd to a higher version than 4.0:releng,4.8,4.8:pre-release,4.8:release_p6,4.8:releng,4.9,4.9:pre-release,4.9:releng,4.10,4.10:release,4.10:releng,5.2,5.2.1:release,5.2.1:releng,and avoid the version 4.0:releng,4.8,4.8:pre-release,4.8:release_p6,4.8:releng,4.9,4.9:pre-release,4.9:releng,4.10,4.10:release,4.10:releng,5.2,5.2.1:release,5.2.1:releng