============================================================================
Ubuntu Security Notice USN-1925-1
August 07, 2013

thunderbird vulnerabilities
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in Thunderbird.

Software Description:
- thunderbird: Mozilla Open Source mail and newsgroup client

Details:

Jeff Gilbert and Henrik Skupin discovered multiple memory safety issues
in Thunderbird. If the user were tricked in to opening a specially crafted
message with scripting enabled, an attacker could possibly exploit these
to cause a denial of service via application crash, or potentially execute
arbitrary code with the privileges of the user invoking Thunderbird.
(CVE-2013-1701)

It was discovered that a document's URI could be set to the URI of
a different document. If a user had scripting enabled, an attacker
could potentially exploit this to conduct cross-site scripting (XSS)
attacks. (CVE-2013-1709)

A flaw was discovered when generating a CRMF request in certain
circumstances. If a user had scripting enabled, an attacker could
potentially exploit this to conduct cross-site scripting (XSS) attacks,
or execute arbitrary code with the privileges of the user invoking
Thunderbird. (CVE-2013-1710)

Cody Crews discovered that some Javascript components performed security
checks against the wrong URI, potentially bypassing same-origin policy
restrictions. If a user had scripting enabled, an attacker could exploit
this to conduct cross-site scripting (XSS) attacks or install addons
from a malicious site. (CVE-2013-1713)

Federico Lanusse discovered that web workers could bypass cross-origin
checks when using XMLHttpRequest. If a user had scripting enabled, an
attacker could potentially exploit this to conduct cross-site scripting
(XSS) attacks. (CVE-2013-1714)

Georgi Guninski and John Schoenick discovered that Java applets could
access local files under certain circumstances. If a user had scripting
enabled, an attacker could potentially exploit this to steal confidential
data. (CVE-2013-1717)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 13.04:
  thunderbird                     17.0.8+build1-0ubuntu0.13.04.1

Ubuntu 12.10:
  thunderbird                     17.0.8+build1-0ubuntu0.12.10.1

Ubuntu 12.04 LTS:
  thunderbird                     17.0.8+build1-0ubuntu0.12.04.1

After a standard system update you need to restart Thunderbird to make
all the necessary changes.

References:
  https://www.ubuntu.com/usn/usn-1925-1
  CVE-2013-1701, CVE-2013-1709, CVE-2013-1710, CVE-2013-1713,
  CVE-2013-1714, CVE-2013-1717, https://launchpad.net/bugs/1208041

Package Information:
  https://launchpad.net/ubuntu/+source/thunderbird/17.0.8+build1-0ubuntu0.13.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/17.0.8+build1-0ubuntu0.12.10.1
  https://launchpad.net/ubuntu/+source/thunderbird/17.0.8+build1-0ubuntu0.12.04.1