"PatchLink Update provides rapid, accurate and secure patch management, allowing you to proactively manage threats by automating the collection, analysis and delivery of patches throughout your enterprise. PatchLink Update significantly decreases the costs involved in securing your organization from worms, Trojans, viruses and other malicious threats." A vulnerability in PatchLink's Update script for UNIX systems allows local attackers to cause the script to clobber (delete and re-create) any arbitrary files the attacker desires.

http://www.securiteam.com/unixfocus/5ZP090UNFU.html