Mandriva Linux Security Advisory – Steve Grubb found that the vcdiff script in Emacs create temporary files insecurely when used with SCCS. A local user could exploit a race condition to create or overwrite files with the privileges of the user invoking the program.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/66060/MDVSA-2008-096.txt
Source: https://packetstormsecurity.com/files/66060/Mandriva-Linux-Security-Advisory-2008-096.html