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Ubuntu Security Notice USN-3114-1
October 25, 2016

nginx vulnerability
==========================================================================

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

– Ubuntu 16.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS

Summary:

The system could be made to run programs as an administrator.

Software Description:
– nginx: small, powerful, scalable web/proxy server

Details:

Dawid Golunski discovered that the nginx package incorrectly handled log
file permissions. A remote attacker could possibly use this issue to obtain
root privileges.

Update instructions:

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

Ubuntu 16.10:
nginx-common 1.10.1-0ubuntu1.1
nginx-core 1.10.1-0ubuntu1.1
nginx-extras 1.10.1-0ubuntu1.1
nginx-full 1.10.1-0ubuntu1.1
nginx-light 1.10.1-0ubuntu1.1

Ubuntu 16.04 LTS:
nginx-common 1.10.0-0ubuntu0.16.04.3
nginx-core 1.10.0-0ubuntu0.16.04.3
nginx-extras 1.10.0-0ubuntu0.16.04.3
nginx-full 1.10.0-0ubuntu0.16.04.3
nginx-light 1.10.0-0ubuntu0.16.04.3

Ubuntu 14.04 LTS:
nginx-common 1.4.6-1ubuntu3.6
nginx-core 1.4.6-1ubuntu3.6
nginx-extras 1.4.6-1ubuntu3.6
nginx-full 1.4.6-1ubuntu3.6
nginx-light 1.4.6-1ubuntu3.6

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

References:
http://www.ubuntu.com/usn/usn-3114-1
CVE-2016-1247

Package Information:
https://launchpad.net/ubuntu/+source/nginx/1.10.1-0ubuntu1.1
https://launchpad.net/ubuntu/+source/nginx/1.10.0-0ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/nginx/1.4.6-1ubuntu3.6

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