=========================================================================Ubuntu Security Notice USN-2506-1
March 03, 2015

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

- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in Thunderbird.

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

Details:

Armin Razmdjou discovered that contents of locally readable files could
be made available via manipulation of form autocomplete in some
circumstances. If a user were tricked in to opening a specially crafted
message with scripting enabled, an attacker could potentially exploit this
to obtain sensitive information. (CVE-2015-0822)

Abhishek Arya discovered an out-of-bounds read and write when rendering
SVG content in some circumstances. If a user were tricked in to opening
a specially crafted message with scripting enabled, an attacker could
potentially exploit this to obtain sensitive information. (CVE-2015-0827)

Paul Bandha discovered a use-after-free in IndexedDB. If a user were
tricked in to opening a specially crafted message with scripting enabled,
an attacker could potentially exploit this to cause a denial of service
via application crash, or execute arbitrary code with the privileges of
the user invoking Thunderbird. (CVE-2015-0831)

Carsten Book, Christoph Diehl, Gary Kwong, Jan de Mooij, Liz Henry, Byron
Campen, Tom Schuster, and Ryan VanderMeulen discovered multiple memory
safety issues in Thunderbird. If a user were tricked in to opening a
specially crafted message with scripting enabled, an attacker could
potentially exploit these to cause a denial of service via application
crash, or execute arbitrary code with the privileges of the user invoking
Thunderbird. (CVE-2015-0836)

Update instructions:

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

Ubuntu 14.10:
  thunderbird                     1:31.5.0+build1-0ubuntu0.14.10.1

Ubuntu 14.04 LTS:
  thunderbird                     1:31.5.0+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  thunderbird                     1:31.5.0+build1-0ubuntu0.12.04.1

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

References:
  https://ubuntu.com/security/notices/USN-2506-1
  CVE-2015-0822, CVE-2015-0827, CVE-2015-0831, CVE-2015-0836

Package Information:
  https://launchpad.net/ubuntu/+source/thunderbird/1:31.5.0+build1-0ubuntu0.14.10.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:31.5.0+build1-0ubuntu0.14.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:31.5.0+build1-0ubuntu0.12.04.1