1. Ubuntu Security Notices
  2. USN-3735-1

USN-3735-1: OpenJDK 7 vulnerability

Publication date

10 August 2018

Overview

Java applications could be made to use excessive memory.

Releases

Packages

  • 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).

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty 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

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References

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