qpopper 4.0.5 and earlier does not properly drop privileges before processing certain user-supplied files, which allows local users to overwrite or create arbitrary files as root.Referenceshttp://secunia.com/advisories/15505http://secunia.com/advisories/15478http://bugs.gentoo.org/show_bug.cgi?id=90622http://www.debian.org/security/2005/dsa-728http://secunia.com/advisories/15475http://www.gentoo.org/security/en/glsa/glsa-200505-17.xml
