Security Update: Oracle Releases Critical Java Update for Windows, Mac and Linux Users
Date and Time
Due to additional exploits of a vulnerability affecting the Java Runtime Environment (JRE) in desktop browsers, Oracle released their Critical Patch Update early this month.
Advanced Users: For a complete description of the vulnerabilities and updates (50 in total), refer to Oracle Java SE Critical Patch Update Advisory - February 2013.
Web browsers using the Java 7 plug-in are at high risk.
All versions of Java 7 before Update 13 are affected.
- Mac OS X
WHAT'S THE PROBLEM?
Java is a programming language that powers state-of-the-art programs including utilities, games, and business applications. Java runs on more than 850 million personal computers worldwide, and on billions of devices worldwide, including mobile and TV devices.
HOW DO I PROTECT MY COMPUTER?
These and previous Java vulnerabilities have been widely targeted by attackers, and new Java vulnerabilities are likely to be discovered.
1. Disable Java in web browsers
To defend against this and future Java vulnerabilities, consider disabling Java in web browsers until adequate updates have been installed. As with any software, unnecessary features should be disabled or removed as appropriate for your environment.
However, this is not always practical where Java-based Web applications are necessary for important operations.
Visit http://www.kb.cert.org/vuls/id/636312 on how to disable Java.
2. If you have a reason to use Java, here are a few options:
- Use Google Chrome browser which automatically blocks Java and in cases where web pages tries to access Java, you will receive a message ““The Java plug-in needs your permission to run.” and you’ll be prompted to accept or deny.
- Set Firefox to click-to-play for similar protection.
3. Update your software
- If you have a computer support coordinator (CSC), no action on your part is required.
- If you do not have a CSC or they do not support your computer, refer to Oracle Java SE Critical Patch Update Advisory - February 2013
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