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[USN-1178-1] IcedTea-Web, OpenJDK 6 vulnerabilities



==========================================================================
Ubuntu Security Notice USN-1178-1
July 27, 2011

icedtea-web, openjdk-6, openjdk-6b18 vulnerabilities
==========================================================================

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

- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS

Summary:

An attacker could discover a user's name or confuse a user into granting
unintended access to files.

Software Description:
- icedtea-web: An implementation of the Java Network Launching Protocol (JNLP)
- openjdk-6: Open Source Java implementation
- openjdk-6b18: Open Source Java implementation

Details:

Omair Majid discovered that an unsigned Web Start application
or applet could determine the path to the cache directory used
to store downloaded class and jar files by querying class loader
properties. This could allow a remote attacker to discover a user's
name and home directory path. (CVE-2011-2513)

Omair Majid discovered that an unsigned Web Start application could
manipulate the content of the security warning dialog message to show
different file names in prompts. This could allow a remote attacker
to confuse a user into granting access to a different file than they
believe they are granting access to. This issue only affected Ubuntu
11.04. (CVE-2011-2514)

Update instructions:

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

Ubuntu 11.04:
  icedtea-netx                    1.1.1-0ubuntu1~11.04.1
  icedtea-plugin                  1.1.1-0ubuntu1~11.04.1

Ubuntu 10.10:
  icedtea6-plugin                 6b20-1.9.9-0ubuntu1~10.10.2

Ubuntu 10.04 LTS:
  icedtea6-plugin                 6b20-1.9.9-0ubuntu1~10.04.2

After a standard system update you need to restart any Java applications
or applets to make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1178-1
  CVE-2011-2513, CVE-2011-2514

Package Information:
  https://launchpad.net/ubuntu/+source/icedtea-web/1.1.1-0ubuntu1~11.04.1
  https://launchpad.net/ubuntu/+source/openjdk-6/6b20-1.9.9-0ubuntu1~10.10.2
  https://launchpad.net/ubuntu/+source/openjdk-6b18/6b18-1.8.8-0ubuntu1~10.10.2+1.8.9
  https://launchpad.net/ubuntu/+source/openjdk-6/6b20-1.9.9-0ubuntu1~10.04.2
  https://launchpad.net/ubuntu/+source/openjdk-6b18/6b18-1.8.8-0ubuntu1~10.04.2+1.8.9

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