Ubuntu 19.10, 18.04 LTS: USN-4257-1 Moderate: OpenJDK Security Issues

ubuntu

January 28, 2020

Several security issues were fixed in OpenJDK.

Summary

Several security issues were fixed in OpenJDK.

Software Description:

- openjdk-8: Open Source Java implementation

- openjdk-lts: Open Source Java implementation

Details:

It was discovered that OpenJDK incorrectly handled exceptions during

deserialization in BeanContextSupport. An attacker could possibly use this

issue to cause a denial of service or other unspecified impact.

(CVE-2020-2583)

It was discovered that OpenJDK incorrectly validated properties of SASL

messages included in Kerberos GSSAPI. An unauthenticated remote attacker

with network access via Kerberos could possibly use this issue to insert,

modify or obtain sensitive information. (CVE-2020-2590)

It was discovered that OpenJDK incorrectly validated URLs. An attacker

could possibly use this issue to insert, edit or obtain sensitive

information. (CVE-2020-2593)

It was discovered that OpenJDK Security component still used MD5 algorithm.

A remote attacker could possibly use this issue to obta...

Read the Full Advisory

Topics Covered

security advisory denial of service information disclosure ubuntu openjdk

Update Instructions

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

Ubuntu 19.10:
  openjdk-11-jdk                  11.0.6+10-1ubuntu1~19.10.1
  openjdk-11-jre                  11.0.6+10-1ubuntu1~19.10.1
  openjdk-11-jre-headless         11.0.6+10-1ubuntu1~19.10.1
  openjdk-11-jre-zero             11.0.6+10-1ubuntu1~19.10.1
  openjdk-8-jdk                   8u242-b08-0ubuntu3~19.10
  openjdk-8-jre                   8u242-b08-0ubuntu3~19.10
  openjdk-8-jre-headless          8u242-b08-0ubuntu3~19.10
  openjdk-8-jre-zero              8u242-b08-0ubuntu3~19.10

Ubuntu 18.04 LTS:
  openjdk-11-jdk                  11.0.6+10-1ubuntu1~18.04.1
  openjdk-11-jre                  11.0.6+10-1ubuntu1~18.04.1
  openjdk-11-jre-headless         11.0.6+10-1ubuntu1~18.04.1
  openjdk-11-jre-zero             11.0.6+10-1ubuntu1~18.04.1
  openjdk-8-jdk                   8u242-b08-0ubuntu3~18.04
  openjdk-8-jre                   8u242-b08-0ubuntu3~18.04
  openjdk-8-jre-headless          8u242-b08-0ubuntu3~18.04
  openjdk-8-jre-zero              8u242-b08-0ubuntu3~18.04

Ubuntu 16.04 LTS:
  openjdk-8-jdk                   8u242-b08-0ubuntu3~16.04
  openjdk-8-jre                   8u242-b08-0ubuntu3~16.04
  openjdk-8-jre-headless          8u242-b08-0ubuntu3~16.04
  openjdk-8-jre-jamvm             8u242-b08-0ubuntu3~16.04
  openjdk-8-jre-zero              8u242-b08-0ubuntu3~16.04

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.