memcached is vulnerable to integer overflow vulnerability. Attackers could send a specially crafted authentication command of Memcached binary protocol which may cause heap overflow and lead to remote code execution.
rhn.redhat.com/errata/RHSA-2016-2819.html
www.debian.org/security/2016/dsa-3704
www.securityfocus.com/bid/94083
www.securitytracker.com/id/1037333
www.talosintelligence.com/reports/TALOS-2016-0221/
access.redhat.com/security/updates/classification/#important
rhn.redhat.com/errata/RHSA-2016-2819.html
security.gentoo.org/glsa/201701-12