USN-2351-1: nginx vulnerability

22 September 2014

nginx vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 14.04 LTS


nginx could be made to expose sensitive information over the network.

Software Description

  • nginx - small, powerful, scalable web/proxy server


Antoine Delignat-Lavaud and Karthikeyan Bhargavan discovered that nginx incorrectly reused cached SSL sessions. An attacker could possibly use this issue in certain configurations to obtain access to information from a different virtual host.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04 LTS
nginx-core - 1.4.6-1ubuntu3.1
nginx-extras - 1.4.6-1ubuntu3.1
nginx-full - 1.4.6-1ubuntu3.1
nginx-light - 1.4.6-1ubuntu3.1
nginx-naxsi - 1.4.6-1ubuntu3.1

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.