The remote host is missing updates announced in advisory CLA-2003:564.
libpng is a library used to create and manipulate PNG (Portable Network Graphics) image files.
Glenn Randers-Pehrson discovered a buffer overflow vulnerability in unpatched libpng versions prior to 1.0.15 and 1.2.5(*) (inclusive).
Programs such as web browsers and various others common applications make use of libpng. An attacker could exploit this vulnerability to remotely run arbitrary code or crash such applications by using a specially crafted png image.
This update provides patched versions of libpng with fixes for this vulnerability.
* The libpng-1.2.X series is available only in Conectiva Linux 8 in the libpng3 package.
Solution: The apt tool can be used to perform RPM package upgrades by running 'apt-get update' followed by 'apt-get upgrade'