Critical Oracle Java Security Update

Oracle released the scheduled critical security updates for its Java SE Runtime Environment software.

This is a Critical Patch Update that contains 40 new security fixes for Oracle Java SE.  Oracle indicated that thirty-seven (37) of the vulnerabilities may be remotely exploitable without authentication.  This was described as the possibility of being exploited over a network without the need for a username and password.

Additional details about the update are available in the Oracle Quality Assurance Blog post, June 2013 Critical Patch Update for Java SE Released.  If Java is still installed on your computer, it is recommended that this update be applied as soon as possible due to the threat posed by a successful attack.

For those people who have desktop applications that require Java and cannot uninstall it, Java can now be disabled in Internet Explorer.  See Microsoft Fix it to Disable Java in Internet Explorer.

Java Security Recommendations

1)  In the Java Control Panel, at minimum, set the security to high.
2)  Keep Java disabled until needed.  Uncheck the box "Enable Java content in the browser" in the Java Control Panel.

(Image via Sophos Naked Security Blog)

3)  If you use Firefox, install NoScript and only allow Java on those sites where it is required.

Instructions on removing older (and less secure) versions of Java can be found at http://java.com/en/download/faq/remove_olderversions.xml

Download Information

Download link:  Java Version 7 Update 25

Verify your version:  http://www.java.com/en/download/testjava.jsp

Notes:

• UNcheck any pre-checked toolbar and/or software options presented with the update. They are not part of the software update and are completely optional.
• Starting with Java SE 7 Update 21 in April 2013, all Java Applets and Web Start Applications should be signed with a trusted certificate.  It is not recommended to run untrusted/unsigned Certificates.  See How to protect your computer against dangerous Java Applets

Critical Patch Updates

For Oracle Java SE Critical Patch Updates, the next scheduled dates are as follows:

• 15 October 2013
• 14 January 2014
• 15 April 2014 

References

•  June 2013 Critical Patch Update for Java SE Released
• Java SE 7 Update Release Notes
• Critical Patch Updates, Security Alerts and Third Party Bulletin 
• Java, The Never-Ending Saga  

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