CentOS Errata and Security Advisory 2009:0155
https://rhn.redhat.com/errata/RHSA-2008-0155.html
The following updated files have been uploaded and are currently syncing to the mirrors:
i386: ghostscript-7.07-33.2.el4_6.1.i386.rpm ghostscript-devel-7.07-33.2.el4_6.1.i386.rpm ghostscript-gtk-7.07-33.2.el4_6.1.i386.rpm
src: ghostscript-7.07-33.2.el4_6.1.src.rpm