==========================================================================
Ubuntu Security Notice USN-3735-1
August 10, 2018

openjdk-7 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 14.04 LTS

Summary:

Java applications could be made to use excessive memory.

Software Description:
– openjdk-7: Open Source Java implementation

Details:

It was discovered that the PatternSyntaxException class in OpenJDK did
not properly validate arguments passed to it. An attacker could use
this to potentially construct a class that caused a denial of service
(excessive memory consumption).

Update instructions:

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

Ubuntu 14.04 LTS:
icedtea-7-jre-jamvm 7u181-2.6.14-0ubuntu0.2
openjdk-7-jdk 7u181-2.6.14-0ubuntu0.2
openjdk-7-jre 7u181-2.6.14-0ubuntu0.2
openjdk-7-jre-headless 7u181-2.6.14-0ubuntu0.2
openjdk-7-jre-lib 7u181-2.6.14-0ubuntu0.2

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-3735-1
CVE-2018-2952

Package Information:
https://launchpad.net/ubuntu/+source/openjdk-7/7u181-2.6.14-0ubuntu0.2

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==========================================================================
Ubuntu Security Notice USN-3734-1
August 10, 2018

openjdk-8 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 16.04 LTS

Summary:

Java applications could be made to use excessive memory.

Software Description:
– openjdk-8: Open Source Java implementation

Details:

It was discovered that the PatternSyntaxException class in OpenJDK
did not properly validate arguments passed to it. An attacker could
use this to possibly construct a class that caused a denial of service
(excessive memory consumption).

Update instructions:

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

Ubuntu 16.04 LTS:
openjdk-8-jdk 8u181-b13-0ubuntu0.16.04.1
openjdk-8-jre 8u181-b13-0ubuntu0.16.04.1
openjdk-8-jre-headless 8u181-b13-0ubuntu0.16.04.1
openjdk-8-jre-jamvm 8u181-b13-0ubuntu0.16.04.1

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-3734-1
CVE-2018-2952

Package Information:
https://launchpad.net/ubuntu/+source/openjdk-8/8u181-b13-0ubuntu0.16.04.1

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