The following updates has been released for CentOS:
CEBA-2018:2893 CentOS 6 gcc-libraries BugFix Update15 CentOS Updates
CEBA-2018:2894 CentOS 6 mailx BugFix Update
CEBA-2018:2895 CentOS 6 libcgroup BugFix Update
CEBA-2018:2896 CentOS 6 nfs-utils BugFix Update
CEBA-2018:2897 CentOS 6 zsh BugFix Update
CEBA-2018:2899 CentOS 6 ypserv BugFix Update
CEBA-2018:2900 CentOS 6 dhcp BugFix Update
CEBA-2018:2901 CentOS 6 device-mapper-multipath BugFix Update
centos-release-7-5.1804.5.el7.centos update
CESA-2018:2846 Important CentOS 6 kernel Security Update
CESA-2018:2881 Critical CentOS 6 firefox Security Update
CESA-2018:2884 Critical CentOS 7 firefox Security Update
CESA-2018:2892 Moderate CentOS 6 glusterfs Security Update
CESA-2018:2898 Moderate CentOS 6 nss Security Update