CentOS Errata and Security Advisory 2005:743
https://rhn.redhat.com/errata/RHSA-2005-743.html
The following updated files have been uploaded and are currently syncing to the mirrors:
files: updates/i386/RPMS/netpbm-9.24-11.30.2.i386.rpm updates/x86_64/RPMS/netpbm-9.24-11.30.2.x86_64.rpm updates/x86_64/RPMS/netpbm-devel-9.24-11.30.2.x86_64.rpm updates/x86_64/RPMS/netpbm-progs-9.24-11.30.2.x86_64.rpm
To apply these updates run: yum update netpbm*
-sv