Amazon Linux AMI Security Advisory: ALAS-2015-500
Advisory Release Date: 2015-04-01 13:32 Pacific
Advisory Updated Date: 2015-04-01 17:02 Pacific
Multiple heap-based buffer overflows in the status_handler function in (1) engine-gpgsm.c and (2) engine-uiserver.c in GPGME before 1.5.1 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to "different line lengths in a specific order."
Run yum update gpgme to update your system.