Mandriva Linux Security Advisory – Alin Rad Pop of Secunia Research discovered a stack buffer overflow in how Samba authenticates remote users. A remote unauthenticated user could trigger this flaw to cause the Samba server to crash, or possibly execute arbitrary code with the permissions of the Samba server.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/61734/MDKSA-2007-244.txt
Source: https://packetstormsecurity.com/files/61734/Mandriva-Linux-Security-Advisory-2007.244.html