Yet another glibc vulnerability has been detected on Feb 17, 2016 which effects:
Red Hat Enterprise Linux 6 & 7
CentOS 6 & 7
CloudLinux 6 & 7
(It also effects non-cpanel operating systems Debian Squeeze, Wheezy, Jessie, Ubuntu 12.04 & 14.04)
To patch your server, type:
yum clean all
yum -y update glibc
For more technical information on this vulnerability, please see:
http://www.kb.cert.org/vuls/id/457759
https://googleonlinesecurity.blogspot.be/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html
https://access.redhat.com/errata/RHSA-2016:0176