RHEL 4 / 5 : thunderbird (RHSA-2011:1343)

This script is Copyright (C) 2011-2014 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing a security update.

Description :

An updated thunderbird package that fixes two security issues is now
available for Red Hat Enterprise Linux 4 and 5.

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.

A flaw was found in the way Thunderbird handled frame objects with
certain names. An attacker could use this flaw to cause a plug-in to
grant its content access to another site or the local file system,
violating the same-origin policy. (CVE-2011-2999)

An integer underflow flaw was found in the way Thunderbird handled
large JavaScript regular expressions. An HTML mail message containing
malicious JavaScript could cause Thunderbird to access already freed
memory, causing Thunderbird to crash or, potentially, execute
arbitrary code with the privileges of the user running Thunderbird.
(CVE-2011-2998)

All Thunderbird users should upgrade to this updated package, which
resolves these issues. All running instances of Thunderbird must be
restarted for the update to take effect.

See also :

https://www.redhat.com/security/data/cve/CVE-2011-2998.html
https://www.redhat.com/security/data/cve/CVE-2011-2999.html
http://rhn.redhat.com/errata/RHSA-2011-1343.html

Solution :

Update the affected thunderbird package.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Red Hat Local Security Checks

Nessus Plugin ID: 56328 ()

Bugtraq ID:

CVE ID: CVE-2011-2998
CVE-2011-2999