Ubuntu 3121-1: OpenJDK 8 vulnerabilities

    Date03 Nov 2016
    CategoryUbuntu
    52
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in OpenJDK 8.
    ==========================================================================
    Ubuntu Security Notice USN-3121-1
    November 03, 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.
    (CVE-2016-5582)
    
    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 OpenJDK did not properly handle HTTP proxy
    authentication. An attacker could use this to expose HTTPS server
    authentication credentials. (CVE-2016-5597)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.10:
      openjdk-8-jdk                   8u111-b14-2ubuntu0.16.10.2
      openjdk-8-jdk-headless          8u111-b14-2ubuntu0.16.10.2
      openjdk-8-jre                   8u111-b14-2ubuntu0.16.10.2
      openjdk-8-jre-headless          8u111-b14-2ubuntu0.16.10.2
      openjdk-8-jre-jamvm             8u111-b14-2ubuntu0.16.10.2
      openjdk-8-jre-zero              8u111-b14-2ubuntu0.16.10.2
    
    Ubuntu 16.04 LTS:
      openjdk-8-jdk                   8u111-b14-2ubuntu0.16.04.2
      openjdk-8-jdk-headless          8u111-b14-2ubuntu0.16.04.2
      openjdk-8-jre                   8u111-b14-2ubuntu0.16.04.2
      openjdk-8-jre-headless          8u111-b14-2ubuntu0.16.04.2
      openjdk-8-jre-jamvm             8u111-b14-2ubuntu0.16.04.2
      openjdk-8-jre-zero              8u111-b14-2ubuntu0.16.04.2
    
    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:
      http://www.ubuntu.com/usn/usn-3121-1
      CVE-2016-5542, CVE-2016-5554, CVE-2016-5573, CVE-2016-5582,
      CVE-2016-5597
    
    Package Information:
      https://launchpad.net/ubuntu/+source/openjdk-8/8u111-b14-2ubuntu0.16.10.2
      https://launchpad.net/ubuntu/+source/openjdk-8/8u111-b14-2ubuntu0.16.04.2
    
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