ghostscript before 5.10-16 allows local users to overwrite files of other users via a symlink attack.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5563
http://www.securityfocus.com/bid/1990
http://www.redhat.com/support/errata/RHSA-2000-114.html
http://www.linux-mandrake.com/en/security/MDKSA-2000-074.php3
http://www.debian.org/security/2000/20001123
http://www.calderasystems.com/support/security/advisories/CSSA-2000-041.0.txt
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000343