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[USN-1463-4] Thunderbird vulnerabilities

Posted on 22 June 2012
Ubuntu Security

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Ubuntu Security Notice USN-1463-4
June 22, 2012

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS

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 caus=
e a
denial of service via application crash, or potentially execute code wit=
h
the privileges of the user invoking Firefox. (CVE-2012-1937, CVE-2012-19=
38)
=20
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)
=20
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. Wit=
h
cross-site scripting vulnerabilities, if a user were tricked into viewin=
g a
specially crafted page, a remote attacker could exploit this to modify t=
he
contents, or steal confidential data, within the same domain.
(CVE-2012-1944)
=20
Paul Stone discovered that a viewed HTML page hosted on a Windows or Sam=
ba
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)
=20
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 thi=
s
to cause a denial of service via application crash, or potentially execu=
te
code with the privileges of the user invoking Firefox. (CVE-2012-1946)
=20
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 possibl=
y
exploit this to cause a denial of service via application crash.
(CVE-2012-0441)
=20
Abhishek Arya discovered two buffer overflow and one use-after-free
vulnerabilities. If the user were tricked into opening a specially craft=
ed
page, an attacker could possibly exploit these to cause a denial of serv=
ice
via application crash, or potentially execute code with the privileges o=
f
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 12.04 LTS:
thunderbird 13.0.1+build1-0ubuntu0.12.04.1

Ubuntu 11.10:
thunderbird 13.0.1+build1-0ubuntu0.11.10.1

Ubuntu 10.04 LTS:
thunderbird 13.0.1+build1-0ubuntu0.10.04.1

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

References:
http://www.ubuntu.com/usn/usn-1463-4
http://www.ubuntu.com/usn/usn-1463-1
CVE-2011-3101, CVE-2012-0441, CVE-2012-1937, CVE-2012-1938,
CVE-2012-1940, CVE-2012-1941, CVE-2012-1944, CVE-2012-1945,
CVE-2012-1946, CVE-2012-1947, https://launchpad.net/bugs/1007556

Package Information:
https://launchpad.net/ubuntu/+source/thunderbird/13.0.1+build1-0ubuntu0=
=2E12.04.1
https://launchpad.net/ubuntu/+source/thunderbird/13.0.1+build1-0ubuntu0=
=2E11.10.1
https://launchpad.net/ubuntu/+source/thunderbird/13.0.1+build1-0ubuntu0=
=2E10.04.1






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