Menu
Serious flaw in GnuTLS library endangers SSL clients and systems

Serious flaw in GnuTLS library endangers SSL clients and systems

A vulnerability patched in the GnuTLS library can potentially be exploited from malicious servers to execute malware on computers

A serious vulnerability that could be exploited to crash TLS clients and potentially execute malicious code on underlying systems was patched in the popular GnuTLS cryptographic library.

The memory corruption vulnerability, which is tracked as CVE-2014-3466, was fixed in GnuTLS 3.3.3, GnuTLS 3.2.15 and GnuTLS 3.1.25 released Friday. Since then, the GnuTLS developers also released GnuTLS 3.3.4 to fix a non-security-related hardware acceleration bug.

GnuTLS is an open-source implementation of the SSL (Secure Sockets Layer), TLS (Transport Layer Security) and DTLS (Datagram Transport Layer Security) protocols which are used to encrypt communications on the Internet.

While not as popular as the OpenSSL library, GnuTLS is still widely used, being shipped by default with various Linux distributions including Red Hat, Ubuntu and Debian. Over 200 Linux software packages also depend on it for SSL/TLS support.

According to an entry on the Red Hat bug tracker, a malicious server could exploit the newly patched vulnerability by sending a very long session ID value during the SSL/TLS handshake. This can crash clients that use GnuTLS and can potentially allow attackers to execute arbitrary code on the system. Red Hat flagged the issue as being of high priority and severity.

Joonas Kuorilehto, a principal systems engineer at Codenomicon, was credited with reporting the vulnerability. Researchers from the same company also found the critical Heartbleed flaw in OpenSSL earlier this year prompting a global patching effort of SSL/TLS servers and clients.

In March, the GnuTLS developers fixed a different vulnerability that could have allowed attackers to craft rogue SSL certificates for websites of their choice that would have been accepted by the library as valid.

Follow Us

Join the New Zealand Reseller News newsletter!

Error: Please check your email address.

Tags patchesonline safetysecuritypatch managementencryptionRed HatExploits / vulnerabilitiesmalwareprivacyCodenomiconintrusion

Slideshows

Top 50 defining moments of the New Zealand channel in 2016

Top 50 defining moments of the New Zealand channel in 2016

Reseller News looks back on a tumultuous 12 months for the New Zealand channel, assessing the fallout from a year of sizeable industry change. Whether it be local or global mergers and acquisitions, distribution deals or job changes, the channel that started the year differs somewhat to the one set to finish it - Reseller News assesses the key moments that made 2016.​

Top 50 defining moments of the New Zealand channel in 2016
​Hewlett Packard Enterprise honours high achieving NZ channel

​Hewlett Packard Enterprise honours high achieving NZ channel

Hewlett Packard Enterprise honoured its top performing Kiwi partners at the second running of its HPE Partner Awards in New Zealand, held at a glitzy ceremony in Auckland. Recognising excellence across eight categories - from distributors to resellers - the tech giant celebrated its first year as a standalone company, following its official split from HP in 2015.

​Hewlett Packard Enterprise honours high achieving NZ channel
Nutanix treats channel partners to Christmas cruise

Nutanix treats channel partners to Christmas cruise

Nutanix recently took to the seas for a Christmas Cruise around Sydney Harbour with its Australia and New Zealand staff, customers and partners to celebrate a stellar year for the vendor. With the sun out, they were all smiles and mingled over drinks and food.

Nutanix treats channel partners to Christmas cruise
Show Comments