Amazon Linux 2 Security Advisory: ALAS-2018-960
Advisory Release Date: 2018-02-21 21:22 Pacific
Insufficient validation of trust of .desktop files with execute permission
An untrusted .desktop file with executable permission set could choose its displayed name and icon, and execute commands without warning when opened by the user. An attacker could use this flaw to trick a user into opening a .desktop file disguised as a document, such as a PDF, and execute arbitrary commands.(CVE-2017-14604 )
Run yum update nautilus to update your system.