Menu
Critical Java updates fix 19 vulnerabilities, disable SSL 3.0

Critical Java updates fix 19 vulnerabilities, disable SSL 3.0

Future Java 7 security patches will not be publicly available so users should migrate to Java 8

Oracle released new security updates for Java to fix 19 vulnerabilities and disable default support for SSL 3.0, an outdated version of the secure communications protocol that is vulnerable to attacks.

The updates were part of Oracle's quarterly Critical Patch Update, released Tuesday, which fixes 169 security issues across hundreds of products.

Fourteen of the 19 vulnerabilities fixed in Java affect client deployments and can be exploited from Web pages through malicious Java applets or Java Web Start applications. Four of them have the maximum severity score 10 in the Common Vulnerability Scoring System (CVSS) and two others come close, at 9.3, meaning they can lead to a full system compromise.

"The threats associated with sandbox bypass vulnerabilities in this CPU [Oracle Critical Patch Update] range from reading and writing local data to complete 'operating system takeover including arbitrary code execution'," said John Matthew Holt, the CTO of Java application security firm Waratek, via email. "Complete OS takeover vulnerabilities are the worst possible kind because attackers can use these vulnerabilities to not just steal sensitive or confidential data, but to install malware, steal passwords, assume a user's identity, delete files, and use the compromised machine as a pivot point to launch deeper attacks to other lateral machines within the same local area network."

The number of attacks that exploit Java vulnerabilities to install malware on computers has been on a steady decline over the past year, but Java exploits remain one of the top attack vectors against Web users, according to a report released Tuesday by Cisco Systems.

Another security-related change in the new Java updates is the deactivation of the SSL 3.0 protocol by default in response to the POODLE vulnerability discovered in October. The flaw allows man-in-the-middle attackers to decrypt sensitive information like authentication cookies from a connection encrypted with SSL 3.0.

What makes POODLE particularly dangerous is that even if a connection uses TLS 1.0, 1.1 or 1.2, an attacker can force a downgrade to SSL 3.0 if both the client and server support the aging protocol.

The change in Java comes as major browser vendors are taking similar actions in regard to support for SSL 3.0.

"If SSLv3 is absolutely required, the protocol can be reactivated by removing 'SSLv3' from the jdk.tls.disabledAlgorithms property in the java.security file or by dynamically setting this Security property to 'true' before JSSE is initialized," Oracle said in the new Java release notes.

The newly patched Java versions are 5.0u81, 6u91, 7u75/7u76 and 8u31, but the Java 5 and 6 updates are only available to Oracle customers with long term support contracts.

This is also the last public security update for Java 7. Users who have the automatic update feature turned on will be migrated to Java 8. Only users with long term support contracts will be able to download future Java 7 security fixes.


Follow Us

Join the newsletter!

Error: Please check your email address.

Tags patchesCisco Systemsonline safetysecuritypatch managementExploits / vulnerabilitiesOracleWaratek

Featured

Slideshows

Meet the top performing HP partners in NZ

Meet the top performing HP partners in NZ

HP honoured leading partners across the channel at the Partner Awards 2017 in New Zealand, recognising excellence across the entire print and personal systems portfolio.

Meet the top performing HP partners in NZ
Tech industry comes together as Lexel celebrates turning 30

Tech industry comes together as Lexel celebrates turning 30

Leading figures within the technology industry across New Zealand came together to celebrate 30 years of success for Lexel Systems, at a milestone birthday occasion at St Matthews in the City.​

Tech industry comes together as Lexel celebrates turning 30
HP re-imagines education through Auckland event launch

HP re-imagines education through Auckland event launch

HP New Zealand held an inaugural Evolve Education event at Aotea Centre in Auckland, welcoming over 70 principals, teachers and education experts to explore ways of shaping and enhancing learning using technology.

HP re-imagines education through Auckland event launch
Show Comments