The remote Oracle Linux host is missing a security update.
From Red Hat Security Advisory 2008:0616 :
Updated thunderbird packages that fix a security issue are now
available for Red Hat Enterprise Linux 4 and Red Hat Enterprise Linux
This update has been rated as having moderate security impact by the
Red Hat Security Response Team.
Mozilla Thunderbird is a standalone mail and newsgroup client.
content. An HTML mail containing such malicious content could cause
Thunderbird to crash or, potentially, execute arbitrary code as the
user running Thunderbird. (CVE-2008-2801, CVE-2008-2802,
Several flaws were found in the processing of malformed HTML content.
An HTML mail containing malicious content could cause Thunderbird to
crash or, potentially, execute arbitrary code as the user running
Thunderbird. (CVE-2008-2785, CVE-2008-2798, CVE-2008-2799,
Several flaws were found in the way malformed HTML content was
displayed. An HTML mail containing specially crafted content could,
potentially, trick a Thunderbird user into surrendering sensitive
Two local file disclosure flaws were found in Thunderbird. An HTML
mail containing malicious content could cause Thunderbird to reveal
the contents of a local file to a remote attacker. (CVE-2008-2805,
A flaw was found in the way a malformed .properties file was processed
by Thunderbird. A malicious extension could read uninitialized memory,
possibly leaking sensitive data to the extension. (CVE-2008-2807)
A flaw was found in the way Thunderbird escaped a listing of local
file names. If a user could be tricked into listing a local directory
with the permissions of the user running Thunderbird. (CVE-2008-2808)
A flaw was found in the way Thunderbird displayed information about
self-signed certificates. It was possible for a self-signed
certificate to contain multiple alternate name entries, which were not
all displayed to the user, allowing them to mistakenly extend trust to
an unknown site. (CVE-2008-2809)
All Thunderbird users should upgrade to these updated packages, which
contain backported patches to resolve these issues.
See also :
Update the affected thunderbird package.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 8.7
Public Exploit Available : true