1.1.16 Ensure noexec option set on /run/shm partition


The noexec mount option specifies that the filesystem cannot contain executable binaries. Setting this option on a file system prevents users from executing programs from shared memory. This deters users from introducing potentially malicious software on the system.


Edit the /etc/fstab file and add noexec to the fourth field (mounting options) for the /run/shm partition. See the fstab(5) manual page for more information. Run the following command to remount /run/shm: # mount -o remount,noexec /run/shm

See Also