The remote Oracle Linux host is missing a security update.
From Red Hat Security Advisory 2012:1351 :
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-2012-3982, CVE-2012-3988, CVE-2012-3990,
CVE-2012-3995, CVE-2012-4179, CVE-2012-4180, CVE-2012-4181,
CVE-2012-4182, CVE-2012-4183, CVE-2012-4185, CVE-2012-4186,
Two flaws in Thunderbird could allow malicious content to bypass
intended restrictions, possibly leading to information disclosure, or
Thunderbird executing arbitrary code. Note that the information
disclosure issue could possibly be combined with other flaws to
achieve arbitrary code execution. (CVE-2012-3986, CVE-2012-3991)
Multiple flaws were found in the location object implementation in
Thunderbird. Malicious content could be used to perform cross-site
scripting attacks, script injection, or spoofing attacks.
(CVE-2012-1956, CVE-2012-3992, CVE-2012-3994)
Two flaws were found in the way Chrome Object Wrappers were
implemented. Malicious content could be used to perform cross-site
scripting attacks or cause Thunderbird to execute arbitrary code.
Red Hat would like to thank the Mozilla project for reporting these
issues. Upstream acknowledges Christian Holler, Jesse Ruderman,
Soroush Dalili, miaubiz, Abhishek Arya, Atte Kettunen, Johnny
Stenback, Alice White, moz_bug_r_a4, and Mariusz Mlynski as the
original reporters of these issues.
Note: None of the issues in this advisory can be exploited by a
default for mail messages. They could be exploited another way in
Thunderbird, for example, when viewing the full remote content of an
All Thunderbird users should upgrade to this updated package, which
contains Thunderbird version 10.0.8 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 : 8.7
Public Exploit Available : true