VMware Security Advisory – VMware Hosted products and ESX and ESXi patches resolve a security issue. Update patch 13 for ESX 2.5.5 updates the libpng Service Console RPM.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/77924/VMSA-2009-0007.txt
Source: https://packetstormsecurity.com/files/77924/VMware-Security-Advisory-2009-0007.html