Moderate: php security update

5.1.6-15.el5 - improve fix for CVE-2007-3997 278411 5.1.6-14.el5 - fix backport for CVE-2007-3996 278411 5.1.6-13.el5 - add security fixes for CVE-2007-2756, CVE-2007-2872, CVE-2007-3799, CVE-2007-3996, CVE-2007-3998, CVE-2007-4658, CVE-2007-4670 278411...