telnet.rb in Puppet 2.7.x before 2.7.13 and Puppet Enterprise (PE) 1.2.x, 2.0.x, and 2.5.x before 2.5.1 allows local users to overwrite arbitrary files via a symlink attack on the NET::Telnet connection log (/tmp/out.log).
https://hermes.opensuse.org/messages/15087408
https://exchange.xforce.ibmcloud.com/vulnerabilities/74797
http://www.securityfocus.com/bid/52975
http://ubuntu.com/usn/usn-1419-1
http://secunia.com/advisories/49136
http://secunia.com/advisories/48748
http://secunia.com/advisories/48743
http://puppetlabs.com/security/cve/cve-2012-1989/
http://projects.puppetlabs.com/projects/1/wiki/Release_Notes#2.7.13
http://projects.puppetlabs.com/issues/13606
http://lists.opensuse.org/opensuse-updates/2012-05/msg00012.html