Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel mm子系统安全漏洞
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。mm subsystem是其中的一个用于记录内存管理的工作原理的子系统。 Linux kernel 4.10.10及之前的版本中的mm子系统存在安全漏洞，该漏洞源于程序没有正确的强制执行CONFIG_STRICT_DEVMEM保护机制。本地攻击者可借助应用程序利用该漏洞读取和写入内核内存位置，并绕过slab-allocation访问限制。
CVSS Information
N/A
Vulnerability Type
N/A