Amazon Linux AMI Security Advisory: ALAS-2014-373
Advisory Release Date: 2014-09-19 10:36 Pacific
An integer overflow flaw was found in the way the lzo library decompressed certain archives compressed with the LZO algorithm. An attacker could create a specially crafted LZO-compressed input that, when decompressed by an application using the lzo library, would cause that application to crash or, potentially, execute arbitrary code. (CVE-2014-4607 )
Run yum update lzo to update your system.