vcdiff in Emacs 20.7 to 22.1.50, when used with SCCS, allows local users to overwrite arbitrary files via a symlink attack on temporary files.
bugs.gentoo.org/show_bug.cgi?id=216880
secunia.com/advisories/29905
secunia.com/advisories/29926
secunia.com/advisories/30109
www.mandriva.com/security/advisories?name=MDVSA-2008:096
www.securityfocus.com/bid/28857
www.securitytracker.com/id?1019909
www.vupen.com/english/advisories/2008/1309/references
www.vupen.com/english/advisories/2008/1310/references
bugzilla.redhat.com/show_bug.cgi?id=208483
exchange.xforce.ibmcloud.com/vulnerabilities/41906
usn.ubuntu.com/607-1/