genmsgidx in Tiger 3.2.2 allows local users to overwrite or delete arbitrary files via a symlink attack on temporary files.
https://exchange.xforce.ibmcloud.com/vulnerabilities/44732
https://bugs.gentoo.org/show_bug.cgi?id=235770
http://www.securityfocus.com/bid/30876
http://www.openwall.com/lists/oss-security/2008/10/30/2
http://uvw.ru/report.lenny.txt
http://secunia.com/advisories/31659