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[USN-1804-1] IcedTea-Web vulnerabilities

Ubuntu Security Notice USN-1804-1
April 18, 2013

icedtea-web vulnerabilities

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS


Two security issues were fixed in IcedTea-Web.

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


Jiri Vanek discovered that IcedTea-Web would use the same classloader for
applets from different domains. A remote attacker could exploit this to
expose sensitive information or potentially manipulate applets from other
domains. (CVE-2013-1926)

It was discovered that IcedTea-Web did not properly verify JAR files and
was susceptible to the GIFAR attack. If a user were tricked into opening a
malicious website, a remote attacker could potentially exploit this to
execute code under certain circumstances. (CVE-2013-1927)

Update instructions:

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

Ubuntu 12.10:
  icedtea-netx                    1.3.2-1ubuntu0.12.10.1

Ubuntu 12.04 LTS:
  icedtea-netx                    1.2.3-0ubuntu0.12.04.1

Ubuntu 11.10:
  icedtea-netx                    1.2.3-0ubuntu0.11.10.1

Ubuntu 10.04 LTS:
  icedtea-netx                    1.2.3-0ubuntu0.10.04.1

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

  CVE-2013-1926, CVE-2013-1927

Package Information:

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