Ubuntu Security Notice 3875-1 - It was discovered that a memory disclosure issue existed in the OpenJDK Library subsystem. An attacker could use this to expose sensitive information and possibly bypass Java sandbox restrictions.
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Ubuntu Security Notice USN-3875-1
January 30, 2019
openjdk-8, openjdk-lts vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 16.04 LTS
Summary:
Java applets or applications could be made to expose sensitive
information.
Software Description:
- openjdk-lts: Open Source Java implementation
- openjdk-8: Open Source Java implementation
Details:
It was discovered that a memory disclosure issue existed in the OpenJDK
Library subsystem. An attacker could use this to expose sensitive
information and possibly bypass Java sandbox restrictions. (CVE-2019-2422)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
openjdk-11-jdk 11.0.1+13-3ubuntu3.18.10.1
openjdk-11-jre 11.0.1+13-3ubuntu3.18.10.1
openjdk-11-jre-headless 11.0.1+13-3ubuntu3.18.10.1
Ubuntu 16.04 LTS:
openjdk-8-jdk 8u191-b12-2ubuntu0.16.04.1
openjdk-8-jre 8u191-b12-2ubuntu0.16.04.1
openjdk-8-jre-headless 8u191-b12-2ubuntu0.16.04.1
openjdk-8-jre-jamvm 8u191-b12-2ubuntu0.16.04.1
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/usn/usn-3875-1
CVE-2019-2422
Package Information:
https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.1+13-3ubuntu3.18.10.1
https://launchpad.net/ubuntu/+source/openjdk-8/8u191-b12-2ubuntu0.16.04.1