The remote Oracle Linux host is missing a security update.
From Red Hat Security Advisory 2013:0145 :
An updated thunderbird package that fixes several security issues is
now available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having
critical security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.
Mozilla Thunderbird is a standalone mail and newsgroup client.
Several flaws were found in the processing of malformed content.
Malicious content could cause Thunderbird to crash or, potentially,
execute arbitrary code with the privileges of the user running
Thunderbird. (CVE-2013-0744, CVE-2013-0746, CVE-2013-0750,
CVE-2013-0753, CVE-2013-0754, CVE-2013-0762, CVE-2013-0766,
A flaw was found in the way Chrome Object Wrappers were implemented.
Malicious content could be used to cause Thunderbird to execute
arbitrary code via plug-ins installed in Thunderbird. (CVE-2013-0758)
A flaw in the way Thunderbird displayed URL values could allow
malicious content or a user to perform a phishing attack.
functions were implemented in Thunderbird. An attacker could use this
flaw to bypass Address Space Layout Randomization (ASLR) and other
security restrictions. (CVE-2013-0748)
Red Hat would like to thank the Mozilla project for reporting these
issues. Upstream acknowledges Atte Kettunen, Boris Zbarsky, pa_kt,
regenrecht, Abhishek Arya, Christoph Diehl, Christian Holler, Mats
Palmgren, Chiaki Ishikawa, Mariusz Mlynski, Masato Kinugawa, and Jesse
Ruderman as the original reporters of these issues.
Note: All issues except CVE-2013-0744, CVE-2013-0753, and
CVE-2013-0754 cannot be exploited by a specially crafted HTML mail
could be exploited another way in Thunderbird, for example, when
viewing the full remote content of an RSS feed.
All Thunderbird users should upgrade to this updated package, which
contains Thunderbird version 10.0.12 ESR, which corrects these issues.
After installing the update, Thunderbird must be restarted for the
changes to take effect.
See also :
Update the affected thunderbird package.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 7.8
Public Exploit Available : true