USN-3735-1: OpenJDK 7 vulnerability

10 August 2018

openjdk-7 vulnerability

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

  • Ubuntu 14.04 LTS


Java applications could be made to use excessive memory.

Software Description

  • openjdk-7 - Open Source Java implementation


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

To update your system, please follow these instructions:

After a standard system update you need to restart any Java applications or applets to make all the necessary changes.