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.
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Ubuntu Security Notice USN-3734-1
August 10, 2018
openjdk-8 vulnerability
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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