The to-upgrade plugin in feta 1.4.16 allows local users to overwrite arbitrary files via a symlink on the (1) /tmp/feta.install.$USER and (2) /tmp/feta.avail.$USER temporary files.Referenceshttp://secunia.com/advisories/32155http://www.openwall.com/lists/oss-security/2008/10/30/2http://dev.gentoo.org/~rbu/security/debiantemp/fetahttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496397https://bugs.gentoo.org/show_bug.cgi?id=235770http://www.debian.org/security/2008/dsa-1643http://www.securityfocus.com/bid/30899
