+++ This bug was initially created as a clone of Bug #158995 +++ Race condition in shtool 2.0.1 and earlier allows local users to create or modify arbitrary files via a symlink attack on the .shtool.$$ temporary file. http://www.zataz.net/adviso/shtool-05252005.txt nmap contains shtool in its source.
This issue should also affect FC4
I'll release nmap-4.03-0.fc4 and nmap-4.03-0.fc5 with a fix quite soon. As we don't support FC-3 anymore and this is only a problem during build (which you aren't supposed to do as root) and this is a codepath which isn't used at all during our builds, I think this can be closed for good. Please reopen if you disagree and FC-Legacy needs to push an update, too.