Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The do_mremap function for the mremap system call in Linux 2.2 to 2.2.25, 2.4 to 2.4.24, and 2.6 to 2.6.2, does not properly check the return value from the do_munmap function when the maximum number of VMA descriptors is exceeded, which allows local users to gain root privileges, a different vulnerability than CAN-2003-0985.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux Kernel do_mremap VMA本地权限提升漏洞
Vulnerability Description
Linux是一款开放源代码操作系统。 Linux内核中mremap(2)系统调用由于没有对函数返回值进行检查，本地攻击者可以利用这个漏洞获得root用户权限。 mremap系统调用被应用程序用来改变映射区段(VMAs)的边界地址。mremap()系统调用提供对已存在虚拟内存区域调整大小。从VMA区域移动部分虚拟内存到新的区域需要建立一个新的VMA描述符，也就是把由VMA描述的下面的页面表条目(page table entries)从老的区域拷贝到进程页表中新的位置。 要完成这个任务do_mremap代码需
CVSS Information
N/A
Vulnerability Type
N/A