USN-3121-1: OpenJDK 8 vulnerabilities

Ubuntu Security Notice USN-3121-1

3rd November, 2016

openjdk-8 vulnerabilities

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

• Ubuntu 16.10



• Ubuntu 16.04 LTS

Summary

Several security issues were fixed in OpenJDK 8.

Software description

• openjdk-8
  - Open Source Java implementation
  
  

Details

It was discovered that the Hotspot component of OpenJDK did not properly
check arguments of the System.arraycopy() function in certain cases. An
attacker could use this to bypass Java sandbox restrictions.
()

It was discovered that the JMX component of OpenJDK did not sufficiently
perform classloader consistency checks. An attacker could use this to
bypass Java sandbox restrictions. ()

It was discovered that OpenJDK did not properly handle HTTP proxy
authentication. An attacker could use this to expose HTTPS server
authentication credentials. (























.

This update uses a new upstream release, which includes additional
bug fixes. After a standard system update you need to restart any
Java applications or applets to make all the necessary changes.

References

,

,

CVE-2016-5597