CentOS Errata and Security Advisory 2007:0992
https://rhn.redhat.com/errata/RHSA-2007-0992.html
The following updated files have been uploaded and are currently syncing to the mirrors:
ia64: updates/ia64/RPMS/libpng-1.2.7-3.c4.1.ia64.rpm updates/ia64/RPMS/libpng-devel-1.2.7-3.c4.1.ia64.rpm updates/ia64/RPMS/libpng10-1.0.16-3.c4.1.ia64.rpm updates/ia64/RPMS/libpng10-devel-1.0.16-3.c4.1.ia64.rpm