The following updates has been released for CentOS:

CEBA-2018:0042 CentOS 7 dracut BugFix Update
CESA-2018:0061 Important CentOS 6 thunderbird Security Update
CESA-2018:0061 Important CentOS 7 thunderbird Security Update

CEBA-2018:0042 CentOS 7 dracut BugFix Update

CentOS Errata and Bugfix Advisory 2018:0042

Upstream details at : https://access.redhat.com/errata/RHBA-2018:0042

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
c6017d90619a761a97b6e48d8f82bf961b8b580bc1ae53beef03355aada3e4da dracut-033-502.el7_4.1.x86_64.rpm
c488f669a93c3fb7c329a9223fe4315321d73cd3e424ab0902b77c4069aacfcd dracut-caps-033-502.el7_4.1.x86_64.rpm
ae13cf4499925fcac5fe6c45ac507b9ff53bf33870bc1de395800e570555a75f dracut-config-generic-033-502.el7_4.1.x86_64.rpm
e38520716f7d774300f3e71e9ad2f3e58abe9302590fcd4016a2a0ebb702b09e dracut-config-rescue-033-502.el7_4.1.x86_64.rpm
3415bec446875991ce2aaddcb01aa5b145dff30c6f153d0d151e7227e292bc04 dracut-fips-033-502.el7_4.1.x86_64.rpm
bb8bb68b3a7031e084a7107c0b137649c1590b6bee3c93e446e93f44322cd69d dracut-fips-aesni-033-502.el7_4.1.x86_64.rpm
05da89cae2a294c13794d43f97e9a7642452ce4b92d92b1b9de5f67a4a8dd844 dracut-network-033-502.el7_4.1.x86_64.rpm
568dac68a18f0a6af37485eb04c77da6a12692f22ad42a19cc12ae4f3e69ad97 dracut-tools-033-502.el7_4.1.x86_64.rpm

Source:
c49fb5836bb119608a6ec9bf43fc344421810eb95bcfea6a8d7719ea74a59c0b dracut-033-502.el7_4.1.src.rpm

CESA-2018:0061 Important CentOS 6 thunderbird Security Update

CentOS Errata and Security Advisory 2018:0061 Important

Upstream details at : https://access.redhat.com/errata/RHSA-2018:0061

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

i386:
e6695d9d57c40de231c342187c2a90e7857e2b03127cc36ebf2196a9ae2ee05a thunderbird-52.5.2-1.el6.centos.i686.rpm

x86_64:
a8c1d4fb627a99bfc5bb43318628979992594546ba7d3836d34cf65ad921002f thunderbird-52.5.2-1.el6.centos.x86_64.rpm

Source:
99ce9c2112832a7cc18198d9e405dad9f3d53d94928b592c2ab100da3ae64df3 thunderbird-52.5.2-1.el6.centos.src.rpm

CESA-2018:0061 Important CentOS 7 thunderbird Security Update

CentOS Errata and Security Advisory 2018:0061 Important

Upstream details at : https://access.redhat.com/errata/RHSA-2018:0061

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
9c5cb918ab52c65f08316d00b8bda0818037c4dd317c8e9c1caf36c121345a14 thunderbird-52.5.2-1.el7.centos.x86_64.rpm

Source:
fcffd379f539a936adf9c5f141a506445b3623854f82d8b51ec250e167bca898 thunderbird-52.5.2-1.el7.centos.src.rpm