Java applications could be made to use excessive memory.
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).
10 August 2018
A security issue affects these releases of Ubuntu and its derivatives:
Java applications could be made to use excessive memory.
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).
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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.