Secunia Research has discovered a vulnerability in Samba, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to a boundary error within the “send_mailslot()” function. This can be exploited to cause a stack-based buffer overflow with zero bytes via a specially crafted “SAMLOGON” domain logon packet containing a username string placed at an odd offset followed by an overly long GETDC string. Samba version 3.0.27a is affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/61658/secunia-sendmailslot.txt
Source: https://packetstormsecurity.com/files/61658/secunia-sendmailslot.txt.html