ubuntu-security-announce Digest, Vol 93, Issue 15

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Today's Topics:

1. [USN-1463-5] Unity 2D update (Micah Gersten)
2. [USN-1463-6] Thunderbird vulnerabilities (Micah Gersten)


----------------------------------------------------------------------

Message: 1
Date: Tue, 26 Jun 2012 23:07:49 -0500
From: Micah Gersten <micah@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1463-5] Unity 2D update
Message-ID: <4FEA8715.8060702@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-1463-5
June 27, 2012

unity-2d update
==========================================================================

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

- Ubuntu 11.04

Summary:

Popup menus were not working in Thunderbird under Unity 2D when started
from the launcher.

Software Description:
- unity-2d: Unity interface for non-accelerated graphics cards

Details:

USN-1463-2 fixed a bug in Unity 2D exposed by a recent Firefox update. It
was discovered that the issue was only partially fixed on Ubuntu 11.04.
When Thunderbird was started from the launcher, Thunderbird was still
unable to obtain pointer grabs under certain conditions. This update fixes
the problem.

Original advisory details:

USN-1463-1 fixed vulnerabilities in Firefox. The Firefox update exposed a
bug in Unity 2D which resulted in Firefox being unable to obtain pointer
grabs in order to open popup menus. This update fixes the problem.

Update instructions:

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

Ubuntu 11.04:
unity-2d-launcher 3.8.4.1-0ubuntu1.2

After a standard system update you need to restart your Unity 2D session to
make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1463-5
http://www.ubuntu.com/usn/usn-1463-1
http://www.ubuntu.com/usn/usn-1463-2, https://launchpad.net/bugs/1016386

Package Information:
https://launchpad.net/ubuntu/+source/unity-2d/3.8.4.1-0ubuntu1.2





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Message: 2
Date: Tue, 26 Jun 2012 23:18:07 -0500
From: Micah Gersten <micah@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1463-6] Thunderbird vulnerabilities
Message-ID: <4FEA897F.8030304@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-1463-6
June 27, 2012

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

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

- Ubuntu 11.04

Summary:

Several security issues were fixed in Thunderbird.

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

Details:

USN-1463-1 fixed vulnerabilities in Firefox. This update provides the
corresponding fixes for Thunderbird.

Original advisory details:

Jesse Ruderman, Igor Bukanov, Bill McCloskey, Christian Holler, Andrew
McCreight, Olli Pettay, Boris Zbarsky, and Brian Bondy discovered memory
safety issues affecting Firefox. If the user were tricked into opening a
specially crafted page, an attacker could possibly exploit these to cause a
denial of service via application crash, or potentially execute code with
the privileges of the user invoking Firefox. (CVE-2012-1937, CVE-2012-1938)

It was discovered that Mozilla's WebGL implementation exposed a bug in
certain NVIDIA graphics drivers. The impact of this issue has not been
disclosed at this time. (CVE-2011-3101)

Adam Barth discovered that certain inline event handlers were not being
blocked properly by the Content Security Policy's (CSP) inline-script
blocking feature. Web applications relying on this feature of CSP to
protect against cross-site scripting (XSS) were not fully protected. With
cross-site scripting vulnerabilities, if a user were tricked into viewing a
specially crafted page, a remote attacker could exploit this to modify the
contents, or steal confidential data, within the same domain.
(CVE-2012-1944)

Paul Stone discovered that a viewed HTML page hosted on a Windows or Samba
share could load Windows shortcut files (.lnk) in the same share. These
shortcut files could then link to arbitrary locations on the local file
system of the individual loading the HTML page. An attacker could
potentially use this vulnerability to show the contents of these linked
files or directories in an iframe, resulting in information disclosure.
(CVE-2012-1945)

Arthur Gerkis discovered a use-after-free vulnerability while
replacing/inserting a node in a document. If the user were tricked into
opening a specially crafted page, an attacker could possibly exploit this
to cause a denial of service via application crash, or potentially execute
code with the privileges of the user invoking Firefox. (CVE-2012-1946)

Kaspar Brand discovered a vulnerability in how the Network Security
Services (NSS) ASN.1 decoder handles zero length items. If the user were
tricked into opening a specially crafted page, an attacker could possibly
exploit this to cause a denial of service via application crash.
(CVE-2012-0441)

Abhishek Arya discovered two buffer overflow and one use-after-free
vulnerabilities. If the user were tricked into opening a specially crafted
page, an attacker could possibly exploit these to cause a denial of service
via application crash, or potentially execute code with the privileges of
the user invoking Firefox. (CVE-2012-1940, CVE-2012-1941, CVE-2012-1947)

Update instructions:

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

Ubuntu 11.04:
thunderbird 13.0.1+build1-0ubuntu0.11.04.1

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

References:
http://www.ubuntu.com/usn/usn-1463-6
http://www.ubuntu.com/usn/usn-1463-1
https://launchpad.net/bugs/1007556

Package Information:
https://launchpad.net/ubuntu/+source/thunderbird/13.0.1+build1-0ubuntu0.11.04.1





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