Samba provides file and printer sharing services to SMB/CIFS clients.
A denial of service bug was found in the way the smbd daemon tracks active connections to shares. It was possible for a remote attacker to cause the smbd daemon to consume a large amount of system memory by sending carefully crafted smb requests. (CVE-2006-3403)
Users of Samba are advised to upgrade to these packages, which contain a backported patch to correct this issue.