The web interface in Open Computer and Software Inventory Next Generation (OCS Inventory NG) 1.01 generates different error messages depending on whether a username is valid, which allows remote attackers to enumerate valid usernames.
bugs.debian.org/cgi-bin/bugreport.cgi?bug=529344
secunia.com/advisories/35157
secunia.com/advisories/35313
www.ocsinventory-ng.org/index.php?mact=News%2Ccntnt01%2Cdetail%2C0&cntnt01articleid=133&cntnt01returnid=69
www.securityfocus.com/bid/35023
www.redhat.com/archives/fedora-package-announce/2009-June/msg00050.html
www.redhat.com/archives/fedora-package-announce/2009-June/msg00057.html
www.redhat.com/archives/fedora-package-announce/2009-June/msg00063.html