Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The do_shmat function in ipc/shm.c in the Linux kernel through 4.9.12 does not restrict the address calculated by a certain rounding operation, which allows local users to map page zero, and consequently bypass a protection mechanism that exists for the mmap system call, by making crafted shmget and shmat system calls in a privileged context.
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 4.9.12及之前的版本中的ipc/shm.c文件的‘do_shmat’函数存在安全漏洞。本地攻击者可借助特制的shmget和shmat系统调用利用该漏洞绕过保护机制。
CVSS Information
N/A
Vulnerability Type
N/A