This script is Copyright (C) 2013-2015 Tenable Network Security, Inc.
The remote Oracle Linux host is missing a security update.
From Red Hat Security Advisory 2008:0576 :
Updated rdesktop packages that fix a security issues are now available
for Red Hat Enterprise Linux 3.
This update has been rated as having moderate security impact by the
Red Hat Security Response Team.
rdesktop is an open source client for Microsoft Windows NT Terminal
Server and Microsoft Windows 2000 and 2003 Terminal Services, capable
of natively using the Remote Desktop Protocol (RDP) to present the
user's NT desktop. No additional server extensions are required.
An integer underflow vulnerability was discovered in the rdesktop. If
an attacker could convince a victim to connect to a malicious RDP
server, the attacker could cause the victim's rdesktop to crash or,
possibly, execute an arbitrary code. (CVE-2008-1801)
Users of rdesktop should upgrade to these updated packages, which
contain a backported patch to resolve this issue.
See also :
Update the affected rdesktop package.
Risk factor :
High / CVSS Base Score : 9.3
CVSS Temporal Score : 7.3
Public Exploit Available : true