Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The vdso_addr function in arch/x86/vdso/vma.c in the Linux kernel through 3.18.2 does not properly choose memory locations for the vDSO area, which makes it easier for local users to bypass the ASLR protection mechanism by guessing a location at the end of a PMD.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 权限许可和访问控制问题漏洞
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。 Linux kernel 3.18.2及之前版本的arch/x86/vdso/vma.c文件中的‘vdso_addr’函数存在安全漏洞，该漏洞源于程序没有正确为vDSO区域选择内存地址。本地攻击者可通过猜测PMD的结束位置利用该漏洞绕过ASLR保护机制。
CVSS Information
N/A
Vulnerability Type
N/A