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Ubuntu 12.04 LTS USN-3154-1: OpenJDK 6 Security Issues Detected

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Calendar Grey December 8, 2016
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Ubuntu 12.04 LTS users must resolve critical OpenJDK 6 vulnerabilities that threaten system security and user data integrity by running updates promptly
Several security issues were fixed in OpenJDK 6.

Summary

Several security issues were fixed in OpenJDK 6.

Software Description:

- openjdk-6: 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 Ubuntu system integrity Java security openjdk JAR integrity

Update Instructions

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

Ubuntu 12.04 LTS:
  icedtea-6-jre-cacao             6b40-1.13.12-0ubuntu0.12.04.2
  icedtea-6-jre-jamvm             6b40-1.13.12-0ubuntu0.12.04.2
  openjdk-6-jdk                   6b40-1.13.12-0ubuntu0.12.04.2
  openjdk-6-jre                   6b40-1.13.12-0ubuntu0.12.04.2
  openjdk-6-jre-headless          6b40-1.13.12-0ubuntu0.12.04.2
  openjdk-6-jre-lib               6b40-1.13.12-0ubuntu0.12.04.2

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-3154-1

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

CVE-2016-5597

Severity
important
Lowest
Low
Medium
High
Critical

December 08, 2016

Topics%20covered

Topics Covered

security advisory Ubuntu system integrity Java security openjdk JAR integrity

Package Information

https://launchpad.net/ubuntu/+source/openjdk-6/6b40-1.13.12-0ubuntu0.12.04.2

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