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Ubuntu 14.04 LTS USN-3130-1: Critical Issues in OpenJDK 7 Security

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Calendar Grey November 17, 2016
Scroller Ubuntu
Ubuntu 14.04 LTS encounters security vulnerabilities in OpenJDK 7, which have been addressed through a recent advisory. Ensure your system is secure by updating promptly.
Several security issues were fixed in OpenJDK 7.

Summary

Several security issues were fixed in OpenJDK 7.

Software Description:

- openjdk-7: Open Source Java implementation

Details:

It was discovered that OpenJDK did not restrict the set of algorithms used

for Jar integrity verification. An attacker could use this to modify

without detection the content of a JAR file, affecting system integrity.

(CVE-2016-5542)

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. (CVE-2016-5554)

It was discovered that the Hotspot component of OpenJDK did not properly

check received Java Debug Wire Protocol (JDWP) packets. An attacker could

use this to send debugging commands to a Java application with debugging

enabled. (CVE-2016-5573)

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 re...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical issue Ubuntu system integrity authentication Java OpenJDK

Update Instructions

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

Ubuntu 14.04 LTS:
  icedtea-7-jre-jamvm             7u121-2.6.8-1ubuntu0.14.04.1
  openjdk-7-jre                   7u121-2.6.8-1ubuntu0.14.04.1
  openjdk-7-jre-headless          7u121-2.6.8-1ubuntu0.14.04.1
  openjdk-7-jre-lib               7u121-2.6.8-1ubuntu0.14.04.1
  openjdk-7-jre-zero              7u121-2.6.8-1ubuntu0.14.04.1

After a standard system update you need to restart any Java
applications or applets to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-3130-1

CVE-2016-5542, CVE-2016-5554, CVE-2016-5573, CVE-2016-5582,

CVE-2016-5597

Severity
critical
Lowest
Low
Medium
High
Critical

November 17, 2016

Topics%20covered

Topics Covered

security advisory critical issue Ubuntu system integrity authentication Java OpenJDK

Package Information

https://launchpad.net/ubuntu/+source/openjdk-7/7u121-2.6.8-1ubuntu0.14.04.1

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