Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
FreeBSD kernel漏洞
Vulnerability Description
FreeBSD kernel 4.6及之前版本在文件标识符0,1,2引用procfs或者linprocfs时，将这些描述符分配给/dev/null后就关闭文件这些描述符。本地用户可以利用该漏洞重用setuid或者setgid程序中的文件描述符来修改关键数据并获取特权。
CVSS Information
N/A
Vulnerability Type
N/A