One vulnerability in the Linux kernel
A race condition was found in the way the Linux kernel’s memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings.
An unprivileged local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system.
Centos/Redhat affected versions: 5/6/7
Script to check the vulnerability: https://access.redhat.com/sites/default/files/rh-cve-2016-5195_5.sh