graphviz before 2.2.1 allows local users to overwrite arbitrary files via a symlink attack on temporary files. NOTE: this issue was originally associated with a different CVE identifier, CVE-2005-2965, which had been used for multiple different issues. This is the correct identifier.
http://www.securityfocus.com/bid/15050
http://www.mandriva.com/security/advisories?name=MDKSA-2005:188
http://www.debian.org/security/2005/dsa-857
http://secunia.com/advisories/17207