Publish date
January 2017
Identifier
CVE-2017-5669
Manufacturer
Linux Foundation
Product
Linux
Patched
http://bugzilla.kernel.org/show_bug.cgi?id=192931
Authors
Gareth Evans
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.
