https://www.samba.org/samba/security/CVE-2012-1182 this CVE was yersterday published on the users-list news-sites are starting to publish it currently http://www.golem.de/news/smb-kritische-samba-luecke-bereits-geschlossen-1204-91064.html
*** This bug has been marked as a duplicate of bug 811392 ***