Amazon Linux AMI Security Advisory: ALAS-2015-554
Advisory Release Date: 2015-06-24 10:14 Pacific
A buffer overflow flaw was found in the way t1utils processed, for example, certain PFB (Printer Font Binary) files. An attacker could use this flaw to potentially execute arbitrary code by tricking a user into processing a specially crafted PFB file with t1utils.
Run yum update t1utils to update your system.