RHEL 5 / 6 : thunderbird (RHSA-2012:0715)

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

An updated thunderbird package that fixes multiple 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-2011-3101, CVE-2012-1937, CVE-2012-1938,
CVE-2012-1939, CVE-2012-1940, CVE-2012-1941, CVE-2012-1946,
CVE-2012-1947)

Note: CVE-2011-3101 only affected users of certain NVIDIA display
drivers with graphics cards that have hardware acceleration enabled.

It was found that the Content Security Policy (CSP) implementation in
Thunderbird no longer blocked Thunderbird inline event handlers.
Malicious content could possibly bypass intended restrictions if that
content relied on CSP to protect against flaws such as cross-site
scripting (XSS). (CVE-2012-1944)

If a web server hosted content that is stored on a Microsoft Windows
share, or a Samba share, loading such content with Thunderbird could
result in Windows shortcut files (.lnk) in the same share also being
loaded. An attacker could use this flaw to view the contents of local
files and directories on the victim's system. This issue also affected
users opening content from Microsoft Windows shares, or Samba shares,
that are mounted on their systems. (CVE-2012-1945)

Red Hat would like to thank the Mozilla project for reporting these
issues. Upstream acknowledges Ken Russell of Google as the original
reporter of CVE-2011-3101
Igor Bukanov, Olli Pettay, Boris Zbarsky,
and Jesse Ruderman as the original reporters of CVE-2012-1937
Jesse
Ruderman, Igor Bukanov, Bill McCloskey, Christian Holler, Andrew
McCreight, and Brian Bondy as the original reporters of CVE-2012-1938

Christian Holler as the original reporter of CVE-2012-1939
security
researcher Abhishek Arya of Google as the original reporter of
CVE-2012-1940, CVE-2012-1941, and CVE-2012-1947
security researcher
Arthur Gerkis as the original reporter of CVE-2012-1946
security
researcher Adam Barth as the original reporter of CVE-2012-1944
and
security researcher Paul Stone as the original reporter of
CVE-2012-1945.

Note: None of the issues in this advisory can be exploited by a
specially crafted HTML mail message as JavaScript is disabled by
default for mail messages. They 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 10.0.5 ESR, which corrects these issues.
After installing the update, Thunderbird must be restarted for the
changes to take effect.

See also :

https://www.redhat.com/security/data/cve/CVE-2011-3101.html
https://www.redhat.com/security/data/cve/CVE-2012-1937.html
https://www.redhat.com/security/data/cve/CVE-2012-1938.html
https://www.redhat.com/security/data/cve/CVE-2012-1939.html
https://www.redhat.com/security/data/cve/CVE-2012-1940.html
https://www.redhat.com/security/data/cve/CVE-2012-1941.html
https://www.redhat.com/security/data/cve/CVE-2012-1944.html
https://www.redhat.com/security/data/cve/CVE-2012-1945.html
https://www.redhat.com/security/data/cve/CVE-2012-1946.html
https://www.redhat.com/security/data/cve/CVE-2012-1947.html
http://rhn.redhat.com/errata/RHSA-2012-0715.html

Solution :

Update the affected thunderbird and / or thunderbird-debuginfo
packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false