USN-2817-1: IcedTea Web vulnerabilities

24 November 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


Several security issues were fixed in IcedTea Web.

Software Description

  • icedtea-web - A web browser plugin to execute Java applets


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

To update your system, please follow these instructions:

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