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    Ubuntu 4607-2: OpenJDK regressions

    Date 12 Nov 2020
    458
    Posted By LinuxSecurity Advisories
    USN-4607-1 introduced a regression in OpenJDK.
    ==========================================================================
    Ubuntu Security Notice USN-4607-2
    November 12, 2020
    
    openjdk-8, openjdk-lts regressions
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 20.10
    - Ubuntu 20.04 LTS
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    USN-4607-1 introduced a regression in OpenJDK.
    
    Software Description:
    - openjdk-8: Open Source Java implementation
    - openjdk-lts: Open Source Java implementation
    
    Details:
    
    USN-4607-1 fixed vulnerabilities and added features in OpenJDK.
    Unfortunately, that update introduced a regression that could cause TLS
    connections with client certificate authentication to fail in some
    situations. This update fixes the problem.
    
    We apologize for the inconvenience.
    
    Original advisory details:
    
     It was discovered that OpenJDK incorrectly handled deserializing Proxy
     class objects with many interfaces. A remote attacker could possibly use
     this issue to cause a denial of service (memory consumption) via a
     specially crafted input. (CVE-2020-14779)
     
     Sergey Ostanin discovered that OpenJDK incorrectly restricted
     authentication mechanisms. A remote attacker could possibly use this
     issue to obtain sensitive information over an unencrypted connection.
     (CVE-2020-14781)
     
     It was discovered that OpenJDK incorrectly handled untrusted certificates.
     An attacker could possibly use this issue to read or write sensitive
     information. (CVE-2020-14782)
     
     Zhiqiang Zang discovered that OpenJDK incorrectly checked for integer
     overflows. An attacker could possibly use this issue to bypass certain
     Java sandbox restrictions. (CVE-2020-14792)
     
     Markus Loewe discovered that OpenJDK incorrectly checked permissions when
     converting a file system path to an URI. An attacker could possibly use
     this issue to bypass certain Java sandbox restrictions. (CVE-2020-14796)
     
     Markus Loewe discovered that OpenJDK incorrectly checked for invalid
     characters when converting an URI to a path. An attacker could possibly
     use this issue to read or write sensitive information. (CVE-2020-14797)
     
     Markus Loewe discovered that OpenJDK incorrectly checked the length of
     input strings. An attacker could possibly use this issue to bypass certain
     Java sandbox restrictions. (CVE-2020-14798)
     
     It was discovered that OpenJDK incorrectly handled boundary checks. An
     attacker could possibly use this issue to bypass certain Java sandbox
     restrictions. (CVE-2020-14803)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 20.10:
      openjdk-11-jdk                  11.0.9.1+1-0ubuntu1~20.10
      openjdk-11-jre                  11.0.9.1+1-0ubuntu1~20.10
      openjdk-11-jre-headless         11.0.9.1+1-0ubuntu1~20.10
      openjdk-11-jre-zero             11.0.9.1+1-0ubuntu1~20.10
      openjdk-8-jdk                   8u275-b01-0ubuntu1~20.10
      openjdk-8-jre                   8u275-b01-0ubuntu1~20.10
      openjdk-8-jre-headless          8u275-b01-0ubuntu1~20.10
      openjdk-8-jre-zero              8u275-b01-0ubuntu1~20.10
    
    Ubuntu 20.04 LTS:
      openjdk-11-jdk                  11.0.9.1+1-0ubuntu1~20.04
      openjdk-11-jre                  11.0.9.1+1-0ubuntu1~20.04
      openjdk-11-jre-headless         11.0.9.1+1-0ubuntu1~20.04
      openjdk-11-jre-zero             11.0.9.1+1-0ubuntu1~20.04
      openjdk-8-jdk                   8u275-b01-0ubuntu1~20.04
      openjdk-8-jre                   8u275-b01-0ubuntu1~20.04
      openjdk-8-jre-headless          8u275-b01-0ubuntu1~20.04
      openjdk-8-jre-zero              8u275-b01-0ubuntu1~20.04
    
    Ubuntu 18.04 LTS:
      openjdk-11-jdk                  11.0.9.1+1-0ubuntu1~18.04
      openjdk-11-jre                  11.0.9.1+1-0ubuntu1~18.04
      openjdk-11-jre-headless         11.0.9.1+1-0ubuntu1~18.04
      openjdk-11-jre-zero             11.0.9.1+1-0ubuntu1~18.04
      openjdk-8-jdk                   8u275-b01-0ubuntu1~18.04
      openjdk-8-jre                   8u275-b01-0ubuntu1~18.04
      openjdk-8-jre-headless          8u275-b01-0ubuntu1~18.04
      openjdk-8-jre-zero              8u275-b01-0ubuntu1~18.04
    
    Ubuntu 16.04 LTS:
      openjdk-8-jdk                   8u275-b01-0ubuntu1~16.04
      openjdk-8-jre                   8u275-b01-0ubuntu1~16.04
      openjdk-8-jre-headless          8u275-b01-0ubuntu1~16.04
      openjdk-8-jre-zero              8u275-b01-0ubuntu1~16.04
    
    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:
      https://usn.ubuntu.com/4607-2
      https://usn.ubuntu.com/4607-1
      CVE-2020-14779, CVE-2020-14781, CVE-2020-14782, CVE-2020-14792,
      CVE-2020-14796, CVE-2020-14797, CVE-2020-14798, CVE-2020-14803
    
    Package Information:
      https://launchpad.net/ubuntu/+source/openjdk-8/8u275-b01-0ubuntu1~20.10
      https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.9.1+1-0ubuntu1~20.10
      https://launchpad.net/ubuntu/+source/openjdk-8/8u275-b01-0ubuntu1~20.04
      https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.9.1+1-0ubuntu1~20.04
      https://launchpad.net/ubuntu/+source/openjdk-8/8u275-b01-0ubuntu1~18.04
      https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.9.1+1-0ubuntu1~18.04
      https://launchpad.net/ubuntu/+source/openjdk-8/8u275-b01-0ubuntu1~16.04
    
    

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