USN-1804-2: IcedTea-Web regression | Ubuntu security notices

Packages

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

Details

USN-1804-1 fixed vulnerabilities in IcedTea-Web. This update introduced
a regression with the Java Network Launching Protocol (JNLP) when fetching
content over SSL under certain configurations, such as when using the
community-supported IcedTead 7 browser plugin. This update fixes the
problem.

We apologize for the inconvenience.

Original advisory 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. (

USN-1804-1 fixed vulnerabilities in IcedTea-Web. This update introduced
a regression with the Java Network Launching Protocol (JNLP) when fetching
content over SSL under certain configurations, such as when using the
community-supported IcedTead 7 browser plugin. This update fixes the
problem.

We apologize for the inconvenience.

Original advisory 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)

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.

Ubuntu Release	Package Version
12.04 precise	icedtea-7-plugin – 1.2.3-0ubuntu0.12.04.2
12.04 precise	icedtea-netx – 1.2.3-0ubuntu0.12.04.2
11.10 oneiric	icedtea-netx – 1.2.3-0ubuntu0.11.10.2

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References

https://launchpad.net/bugs/1171506