The remote Oracle Linux host is missing one or more security updates.
From Red Hat Security Advisory 2012:0465 :
Updated samba packages that fix one security issue are now available
for Red Hat Enterprise Linux 5 and 6
Red Hat Enterprise Linux 5.3
and Red Hat Enterprise Linux 5.6, 6.0 and 6.1 Extended
The Red Hat Security Response Team has rated this update as having
critical security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.
Samba is an open source implementation of the Server Message Block
(SMB) or Common Internet File System (CIFS) protocol, which allows
PC-compatible machines to share files, printers, and other
A flaw in the Samba suite's Perl-based DCE/RPC IDL (PIDL) compiler,
used to generate code to handle RPC calls, resulted in multiple buffer
overflows in Samba. A remote, unauthenticated attacker could send a
specially crafted RPC request that would cause the Samba daemon (smbd)
to crash or, possibly, execute arbitrary code with the privileges of
the root user. (CVE-2012-1182)
Users of Samba are advised to upgrade to these updated packages, which
contain a backported patch to resolve this issue. After installing
this update, the smb service will be restarted automatically.
See also :
Update the affected samba packages.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 8.3
Public Exploit Available : true