The /tmp directory is a world-writable directory used for temporary storage by all users and some applications. Rationale: Making /tmp its own file system allows an administrator to set the noexec option on the mount, making /tmp useless for an attacker to install executable code. It would also prevent an attacker from establishing a hardlink to a system setuid program and wait for it to be updated. Once the program was updated, the hardlink would be broken and the attacker would have his own copy of the program. Fix: For new installations, during installation create a custom partition setup and specify a separate partition for /tmp. For systems that were previously installed, create a new partition and configure /etc/fstab as appropriate.

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For new installations, during installation create a custom partition setup and specify a separate partition for /tmp. For systems that were previously installed, create a new partition and configure /etc/fstab as appropriate.