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Ubuntu Security Notice USN-2131-1
March 06, 2014

icedtea-web vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

IcedTea Web could be made to expose or alter sensitive information.

Software Description:
- icedtea-web: A web browser plugin to execute Java applets

Details:

Michael Scherer discovered that IcedTea Web created temporary directories
in an unsafe fashion. A local attacker could possibly use this issue to
obtain or modify sensitive information from other local user sessions.

Update instructions:

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

Ubuntu 13.10:
  icedtea-6-plugin                1.4-3ubuntu2.1
  icedtea-7-plugin                1.4-3ubuntu2.1

Ubuntu 12.10:
  icedtea-6-plugin                1.3.2-1ubuntu0.12.10.3
  icedtea-7-plugin                1.3.2-1ubuntu0.12.10.3

Ubuntu 12.04 LTS:
  icedtea-6-plugin                1.2.3-0ubuntu0.12.04.4
  icedtea-7-plugin                1.2.3-0ubuntu0.12.04.4

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

References:
  http://www.ubuntu.com/usn/usn-2131-1
  CVE-2013-6493

Package Information:
  https://launchpad.net/ubuntu/+source/icedtea-web/1.4-3ubuntu2.1
  https://launchpad.net/ubuntu/+source/icedtea-web/1.3.2-1ubuntu0.12.10.3
  https://launchpad.net/ubuntu/+source/icedtea-web/1.2.3-0ubuntu0.12.04.4