The following updates has been released for CentOS:

CEBA-2018:3013 CentOS 6 tzdata BugFix Update
CEBA-2018:3013 CentOS 7 tzdata BugFix Update
CESA-2018:C001 CentOS 7 xorg-x11-server Security Update

CEBA-2018:3013 CentOS 6 tzdata BugFix Update

CentOS Errata and Bugfix Advisory 2018:3013

Upstream details at : https://access.redhat.com/errata/RHBA-2018:3013

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

i386:
0e3a88856581aea77fe93130ea5a87c8db4645ef9e8a542dba9ea503293379e0 tzdata-2018f-1.el6.noarch.rpm
f798c34e5a2e851ae952333ed2230c575199aa04159836012f65b89dfe3fb907 tzdata-java-2018f-1.el6.noarch.rpm

x86_64:
0e3a88856581aea77fe93130ea5a87c8db4645ef9e8a542dba9ea503293379e0 tzdata-2018f-1.el6.noarch.rpm
f798c34e5a2e851ae952333ed2230c575199aa04159836012f65b89dfe3fb907 tzdata-java-2018f-1.el6.noarch.rpm

Source:
c6aac1e140d20ead4a4418c4357569cd6bace1a980a6f1bd0a3b1cf506f3da92 tzdata-2018f-1.el6.src.rpm



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CEBA-2018:3013 CentOS 7 tzdata BugFix Update

CentOS Errata and Bugfix Advisory 2018:3013

Upstream details at : https://access.redhat.com/errata/RHBA-2018:3013

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

x86_64:
59e12ef8382b5e1e893053e6b6b8ae9408df040bfe114a5a01e83dbfd53f6287 tzdata-2018f-2.el7.noarch.rpm
789b5f573116c54397536cc178fb76eec58bc6b06cc811c0c3372f0505bfd251 tzdata-java-2018f-2.el7.noarch.rpm

Source:
4c179f9fa6c98c75a94ab9f4fec7435abab6fa6484494f25059412a71669ccea tzdata-2018f-2.el7.src.rpm



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CESA-2018:C001 CentOS 7 xorg-x11-server Security Update

CentOS Errata and Security Advisory 2018:C001 Important

x86_64:
d7040381e9d05074c9220073c20eabe185ca6f133b0e8238f6afb250b28b566f xorg-x11-server-common-1.19.5-5.1.el7_5.0.1.x86_64.rpm

ca56b7e4b160e55125ec6b1fa57c24cd2083edefa0ffd78c49bb4111ae053006 xorg-x11-server-devel-1.19.5-5.1.el7_5.0.1.i686.rpm

8c4ca5dc5588839730be5f34995f6f3b1f36c1bc335759fa936f4ddf79fd9dc7 xorg-x11-server-devel-1.19.5-5.1.el7_5.0.1.x86_64.rpm

e9d9591569a2c4d6782e266952965b7f507583913b2dce149a3fac2fd9f636ff xorg-x11-server-source-1.19.5-5.1.el7_5.0.1.noarch.rpm

e2283801ce3fc087cda74e5d752a9def156d7f8fe598fd383ad1002b9e797bbe xorg-x11-server-Xdmx-1.19.5-5.1.el7_5.0.1.x86_64.rpm

f61c07c9d7b907fc7175f680ad9f63a04d4b5b94ea5b064e92f9e1b98bb12d68 xorg-x11-server-Xephyr-1.19.5-5.1.el7_5.0.1.x86_64.rpm

3f8c7bd64a2ad51308c23873a72d7443dde96783e0cd6345a7c3294ad97f029d xorg-x11-server-Xnest-1.19.5-5.1.el7_5.0.1.x86_64.rpm

b3ebf91cfe4a50a6264dc2688205d577d8591288a91407153904a9bd4e2b287f xorg-x11-server-Xorg-1.19.5-5.1.el7_5.0.1.x86_64.rpm

f43e9ed375c13ac8a09c488db632e8c4a3ca447ec5c9f4664ee2c0b98296a65f xorg-x11-server-Xvfb-1.19.5-5.1.el7_5.0.1.x86_64.rpm

2a52feefdd3bc0e1e2cf54cc73531576159e4476cf456fce35afd055a3072248 xorg-x11-server-Xwayland-1.19.5-5.1.el7_5.0.1.x86_64.rpm

NOTE: This update is in response to CVE-2018-14655 (https://www.securepatterns.com/2018/10/cve-2018-14665-xorg-x-server.html), there currently is no corresponding update for RHEL 7.5.

Thanks to Pablo Garcia for suggesting and testing this update in the CentOS-QA IRC Channel.