expn in the am-utils and net-fs packages for Gentoo, rPath Linux, and other distributions, allows local users to overwrite arbitrary files via a symlink attack on the expn[PID] temporary file. NOTE: this is the same issue as CVE-2003-0308.1.
bugs.gentoo.org/show_bug.cgi?id=210158
secunia.com/advisories/29144
secunia.com/advisories/29187
secunia.com/advisories/29694
secunia.com/advisories/33400
wiki.rpath.com/wiki/Advisories:rPSA-2008-0088
www.gentoo.org/security/en/glsa/glsa-200804-09.xml
www.securityfocus.com/archive/1/488931/100/0/threaded
www.securityfocus.com/bid/28044
issues.rpath.com/browse/RPL-2255
www.redhat.com/archives/fedora-package-announce/2009-January/msg00273.html