The remote Oracle Linux host is missing one or more security updates.
From Red Hat Security Advisory 2011:1161 :
Updated freetype packages that fix one security issue are now
available for Red Hat Enterprise Linux 4.
The Red Hat Security Response Team has rated this update as having
moderate 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.
FreeType is a free, high-quality, portable font engine that can open
and manage font files. It also loads, hints, and renders individual
glyphs efficiently. These packages provide both the FreeType 1 and
FreeType 2 font engines.
A buffer overflow flaw was found in the way the FreeType library
handled malformed font files compressed using UNIX compress. If a user
loaded a specially crafted compressed font file with an application
linked against FreeType, it could cause the application to crash or,
possibly, execute arbitrary code with the privileges of the user
running the application. (CVE-2011-2895)
Note: This issue only affects the FreeType 2 font engine.
Users are advised to upgrade to these updated packages, which contain
a backported patch to correct this issue. The X server must be
restarted (log out, then log back in) for this update to take effect.
See also :
Update the affected freetype packages.
Risk factor :
High / CVSS Base Score : 9.3
CVSS Temporal Score : 8.1
Public Exploit Available : false