=========================================================================Ubuntu Security Notice USN-2817-1
November 24, 2015

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

- Ubuntu 15.10
- Ubuntu 15.04
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in IcedTea Web.

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

Details:

It was discovered that IcedTea Web incorrectly handled applet URLs. A
remote attacker could possibly use this issue to inject applets into the
.appletTrustSettings configuration file and bypass user approval.
(CVE-2015-5234)

Andrea Palazzo discovered that IcedTea Web incorrectly determined the
origin of unsigned applets. A remote attacker could possibly use this issue
to bypass user approval, or to trick the user into approving applet
execution. (CVE-2015-5235)

Update instructions:

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

Ubuntu 15.10:
  icedtea-7-plugin                1.5.3-0ubuntu0.15.10.1

Ubuntu 15.04:
  icedtea-7-plugin                1.5.3-0ubuntu0.15.04.1

Ubuntu 14.04 LTS:
  icedtea-6-plugin                1.5.3-0ubuntu0.14.04.1
  icedtea-7-plugin                1.5.3-0ubuntu0.14.04.1

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

References:
  https://ubuntu.com/security/notices/USN-2817-1
  CVE-2015-5234, CVE-2015-5235

Package Information:
  https://launchpad.net/ubuntu/+source/icedtea-web/1.5.3-0ubuntu0.15.10.1
  https://launchpad.net/ubuntu/+source/icedtea-web/1.5.3-0ubuntu0.15.04.1
  https://launchpad.net/ubuntu/+source/icedtea-web/1.5.3-0ubuntu0.14.04.1