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Ubuntu Security Notice USN-3734-1

Ubuntu Security Notice USN-3734-1
Posted Aug 10, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3734-1 - 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.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2018-2952
MD5 | 307d553456b77175e08a27757fcda912

Ubuntu Security Notice USN-3734-1

Change Mirror Download
==========================================================================
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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