OpenSSL releases several patches but none for serious issues

The encryption application is still being fine-tuned after major flaws were found

The OpenSSL project has released several patches for moderate flaws, including an additional defense against the Logjam vulnerability revealed last month.

OpenSSL is widely used open-source software that encrypts communications using the SSL/TLS (Secure Sockets Layer/Transport Layer Security) protocol. SSL/TLS prevents clear-text data from being transmitted across the Web, avoiding high security risks.

The patches include three for moderate flaws. Two of these fix flaws that could be used for denial of service attacks, according to an advisory. The third patch fixes a moderate flaw that affects OpenSSL versions prior to a June 2014 release. A fourth patch is for a low severity race condition flaw.

The latest versions of OpenSSL are now 1.0.2b, 1.0.1n, 1.0.0s and 0.9.8zg.

Another change in OpenSSL is an additional defense against the so-called Logjam flaw, which can allow an attacker to significantly weaken the encrypted connection between a user and a Web or email server.

Logjam lies specifically within a set of Diffie-Hellman algorithms, which facilitate the exchange of encryption keys before a connection is secured.

Software products that still support weak 512-bit encryption keys could be tricked into using that weak key, which can be calculated and then used to decrypt traffic.

OpenSSL will now reject handshakes that use Diffie-Hellman parameters shorter than 768 bits, the advisory said. Eventually, the limit will be raised to 1,024 bits.

The discovery of an alarming flaw called Heartbleed in April 2014 prompted a wide examination of OpenSSL, which is used by millions of web sites and email severs. An audit is still ongoing in OpenSSL with the aim of eliminating years-old but unknown flaws.

Send news tips and comments to jeremy_kirk@idg.com. Follow me on Twitter: @jeremy_kirk

Join the CSO newsletter!

Error: Please check your email address.

Tags patchesOpenSSLsecurity

More about TransportTwitter

Show Comments

Featured Whitepapers

Editor's Recommendations

Solution Centres

Stories by Jeremy Kirk

Latest Videos

  • 150x50

    CSO Webinar: The Human Factor - Your people are your biggest security weakness

    ​Speakers: David Lacey, Researcher and former CISO Royal Mail David Turner - Global Risk Management Expert Mark Guntrip - Group Manager, Email Protection, Proofpoint

    Play Video

  • 150x50

    CSO Webinar: Current ransomware defences are failing – but machine learning can drive a more proactive solution

    Speakers • Ty Miller, Director, Threat Intelligence • Mark Gregory, Leader, Network Engineering Research Group, RMIT • Jeff Lanza, Retired FBI Agent (USA) • Andy Solterbeck, VP Asia Pacific, Cylance • David Braue, CSO MC/Moderator What to expect: ​Hear from industry experts on the local and global ransomware threat landscape. Explore a new approach to dealing with ransomware using machine-learning techniques and by thinking about the problem in a fundamentally different way. Apply techniques for gathering insight into ransomware behaviour and find out what elements must go into a truly effective ransomware defence. Get a first-hand look at how ransomware actually works in practice, and how machine-learning techniques can pick up on its activities long before your employees do.

    Play Video

  • 150x50

    CSO Webinar: Get real about metadata to avoid a false sense of security

    Speakers: • Anthony Caruana – CSO MC and moderator • Ian Farquhar, Worldwide Virtual Security Team Lead, Gigamon • John Lindsay, Former CTO, iiNet • Skeeve Stevens, Futurist, Future Sumo • David Vaile - Vice chair of APF, Co-Convenor of the Cyberspace Law And Policy Community, UNSW Law Faculty This webinar covers: - A 101 on metadata - what it is and how to use it - Insight into a typical attack, what happens and what we would find when looking into the metadata - How to collect metadata, use this to detect attacks and get greater insight into how you can use this to protect your organisation - Learn how much raw data and metadata to retain and how long for - Get a reality check on how you're using your metadata and if this is enough to secure your organisation

    Play Video

  • 150x50

    CSO Webinar: How banking trojans work and how you can stop them

    CSO Webinar: How banking trojans work and how you can stop them Featuring: • John Baird, Director of Global Technology Production, Deutsche Bank • Samantha Macleod, GM Cyber Security, ME Bank • Sherrod DeGrippo, Director of Emerging Threats, Proofpoint (USA)

    Play Video

  • 150x50

    IDG Live Webinar:The right collaboration strategy will help your business take flight

    Speakers - Mike Harris, Engineering Services Manager, Jetstar - Christopher Johnson, IT Director APAC, 20th Century Fox - Brent Maxwell, Director of Information Systems, THE ICONIC - IDG MC/Moderator Anthony Caruana

    Play Video

More videos

Blog Posts

Market Place