Directory traversal vulnerability in Puppet 2.6.x before 2.6.10 and 2.7.x before 2.7.4 allows remote attackers to write X.509 Certificate Signing Request (CSR) to arbitrary locations via (1) a double-encoded key parameter in the URI in 2.7.x, (2) the CN in the Subject of a CSR in 2.6 and 0.25.
https://puppet.com/security/cve/cve-2011-3848
https://groups.google.com/group/puppet-announce/browse_thread/thread/e57ce2740feb9406
http://www.ubuntu.com/usn/USN-1217-1
http://www.debian.org/security/2011/dsa-2314
http://secunia.com/advisories/46628
http://lists.opensuse.org/opensuse-updates/2011-10/msg00033.html