Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Integer overflow in the Berkeley Fast File System (FFS) in FreeBSD 4.6.1 RELEASE-p4 and earlier allows local users to access arbitrary file contents within FFS to gain privileges by creating a file that is larger than allowed by the virtual memory system.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
FreeBSD FFS文件系统任意块读写漏洞
Vulnerability Description
FreeBSD缺省使用Berkeley Fast File System (FFS)文件系统。 在最大可允许的FFS文件大小的计算过程中有一个缺陷，可允许用户创建的文件超过FreeBSD虚拟内存系统的处理能力。这些文件被访问后会导致整数溢出，这会使得文件系统元数据(metadata)被映射到用户文件中，使用户能访问任意的文件系统块。本地攻击者可破坏文件系统导致拒绝服务。本地攻击者还能在本地文件系统中读写任意文件，获得超级用户权限。 本漏洞只存在于块大小为16k或更大的i386结构的FFS文件系统，或块大小
CVSS Information
N/A
Vulnerability Type
N/A