[CentOS] security updates?

Hello,

There are several important security updates available:

Critical: firefox security and bug fix update
Important: tomcat5 security update
Important: vsftpd security update
Moderate: subversion security and bug fix update
Important: logwatch security update
Important: libtiff security update
Moderate: kernel security and bug fix update
Important: samba security update
Important: samba3x security update
Moderate: mailman security update
Important: krb5 security update
Moderate: postgresql security update
Moderate: postgresql84 security update
Moderate: pango security update
Important: java-1.6.0-openjdk security and bug fix update

Does CentOS not have any updates?

--
Hendrik