Ubuntu Security Notice 2351-1 - 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.
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Ubuntu Security Notice USN-2351-1
September 22, 2014
nginx vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
nginx could be made to expose sensitive information over the network.
Software Description:
- nginx: small, powerful, scalable web/proxy server
Details:
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
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2351-1
CVE-2014-3616
Package Information:
https://launchpad.net/ubuntu/+source/nginx/1.4.6-1ubuntu3.1