The following updates has been released for CentOS 6:

CESA-2019:2694 Critical CentOS 6 firefox Security Update
CESA-2019:2736 Important CentOS 6 kernel Security Update

CESA-2019:2694 Critical CentOS 6 firefox Security Update

CentOS Errata and Security Advisory 2019:2694 Critical

Upstream details at : https://access.redhat.com/errata/RHSA-2019:2694

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

i386:
6ef943c78473e61e0cfd059e966069f01272f6cc2f04f632ce50884f69eefbed firefox-60.9.0-1.el6.centos.i686.rpm

x86_64:
6ef943c78473e61e0cfd059e966069f01272f6cc2f04f632ce50884f69eefbed firefox-60.9.0-1.el6.centos.i686.rpm
cdc30505fd9f49e3aed7023600f305f821cad77fb24874228b79fabf7b3f0523 firefox-60.9.0-1.el6.centos.x86_64.rpm

Source:
de48eb73f05ff6a67235a5933c9e56bcbe2f7356cdd4a1fd1fc5171704513794 firefox-60.9.0-1.el6.centos.src.rpm

CESA-2019:2736 Important CentOS 6 kernel Security Update

CentOS Errata and Security Advisory 2019:2736 Important

Upstream details at : https://access.redhat.com/errata/RHSA-2019:2736

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

i386:
9ce383ba070bcc87a433b3c78c2cf3f0f66452513253161eb1ab87cf09088f2b kernel-2.6.32-754.22.1.el6.i686.rpm
864c7f1be86f18465abf5933db5ea3852fb4caa0d51e6fd8e00d1ee5a15108ee kernel-abi-whitelists-2.6.32-754.22.1.el6.noarch.rpm
94996dd4fb431e84b22fea9c41f93b1d03c1bae2490fb6a18459973d55a1cb71 kernel-debug-2.6.32-754.22.1.el6.i686.rpm
4dce4cf2feab05ad5a13fae2f6fc1bd1927cd675698ab64a18e510656aede695 kernel-debug-devel-2.6.32-754.22.1.el6.i686.rpm
c42620af10f6d8f3949542981f81ca4b7adca56617ad3bbef6782f3ea6f1c14b kernel-devel-2.6.32-754.22.1.el6.i686.rpm
38f1813a3d0ffbd23cb512930f6e9120a65f0c7575fda93b506065403122e40a kernel-doc-2.6.32-754.22.1.el6.noarch.rpm
2b3f94b1e0c533a0df5ab239d6e2301b33944b46e44f12cc19f7b4bd1182346e kernel-firmware-2.6.32-754.22.1.el6.noarch.rpm
bc3ad1d39f3d6d41cff6f2a5691a73b6fad88128b5a044dec761ec92c4fb0640 kernel-headers-2.6.32-754.22.1.el6.i686.rpm
284c45d5a4643be61f8e0a5e030cef54a64c7ee16cfd71b2df250b5ff62f245a perf-2.6.32-754.22.1.el6.i686.rpm
704837e8fa1fc6f92cb9ee7206c0ee8f0979d0d80ae4aff9dd3c1be5653ce2b6 python-perf-2.6.32-754.22.1.el6.i686.rpm

x86_64:
f641c62ed63cef581c46b09b254582ad2dacc8462ec53176f0b2f8bcb3f12c89 kernel-2.6.32-754.22.1.el6.x86_64.rpm
864c7f1be86f18465abf5933db5ea3852fb4caa0d51e6fd8e00d1ee5a15108ee kernel-abi-whitelists-2.6.32-754.22.1.el6.noarch.rpm
6a02e01f29522425ef9417f8e90dd4bd4797add07b54f65e773353345a938c3a kernel-debug-2.6.32-754.22.1.el6.x86_64.rpm
4dce4cf2feab05ad5a13fae2f6fc1bd1927cd675698ab64a18e510656aede695 kernel-debug-devel-2.6.32-754.22.1.el6.i686.rpm
3fa76e6911136f8de92302970cd0cf2b00ba42f573ed4afd07274e2834fa5603 kernel-debug-devel-2.6.32-754.22.1.el6.x86_64.rpm
a8a9687dbab8b6da306d84137efa09a49f8caa8e1edc21c452c42981606d3687 kernel-devel-2.6.32-754.22.1.el6.x86_64.rpm
38f1813a3d0ffbd23cb512930f6e9120a65f0c7575fda93b506065403122e40a kernel-doc-2.6.32-754.22.1.el6.noarch.rpm
2b3f94b1e0c533a0df5ab239d6e2301b33944b46e44f12cc19f7b4bd1182346e kernel-firmware-2.6.32-754.22.1.el6.noarch.rpm
9f5197f4aecf8457366cdc7d1d2a2a67c022035c418f925b9d00a1e457620b5d kernel-headers-2.6.32-754.22.1.el6.x86_64.rpm
2619786dcda4c832bf17b88a24ab35ed02cb4d2800e9a5ffa2ef7f3b0983c348 perf-2.6.32-754.22.1.el6.x86_64.rpm
2e1ef18925815e690f6d67ff85bb163623d21832124c00a56400b390eade8bad python-perf-2.6.32-754.22.1.el6.x86_64.rpm

Source:
83ebcdee19a238223510ad393de706c0cf53beb0b998a1a19a524287b628355c kernel-2.6.32-754.22.1.el6.src.rpm