ProcessTable.pm in the Proc::ProcessTable module 0.45 for Perl, when TTY information caching is enabled, allows local users to overwrite arbitrary files via a symlink attack on /tmp/TTYDEVS.
bugs.debian.org/cgi-bin/bugreport.cgi?bug=650500
secunia.com/advisories/47015
www.openwall.com/lists/oss-security/2011/11/30/2
www.openwall.com/lists/oss-security/2011/11/30/3
www.osvdb.org/77428
www.securityfocus.com/bid/50868
bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4363
rt.cpan.org/Public/Bug/Display.html?id=72862