The following updates has been released for CentOS 6:
CESA-2017:2424 Critical CentOS 6 java-1.7.0-openjdk Security UpdateJava / Firefox / Httpd Updates for CentOS 6
CESA-2017:2456 Critical CentOS 6 firefox Security Update
CESA-2017:2478 Critical CentOS 6 httpd Security Update