USN-1804-1: IcedTea-Web vulnerabilities

Publication date

18 April 2013

Overview

Two security issues were fixed in IcedTea-Web.


Packages

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

Details

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)

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
12.10 quantal icedtea-netx –  1.3.2-1ubuntu0.12.10.1
12.04 precise icedtea-netx –  1.2.3-0ubuntu0.12.04.1
11.10 oneiric icedtea-netx –  1.2.3-0ubuntu0.11.10.1
10.04 lucid icedtea-netx –  1.2.3-0ubuntu0.10.04.1

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

Talk to a member of the team ›