[USN-2991-1] nginx vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-2991-1
June 02, 2016

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

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS

Summary:

nginx could be made to crash if it received specially crafted network
traffic.

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

Details:

It was discovered that nginx incorrectly handled saving client request
bodies to temporary files. A remote attacker could possibly use this issue
to cause nginx to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 16.04 LTS:
  nginx-core                      1.10.0-0ubuntu0.16.04.2
  nginx-extras                    1.10.0-0ubuntu0.16.04.2
  nginx-full                      1.10.0-0ubuntu0.16.04.2
  nginx-light                     1.10.0-0ubuntu0.16.04.2

Ubuntu 15.10:
  nginx-core                      1.9.3-1ubuntu1.2
  nginx-extras                    1.9.3-1ubuntu1.2
  nginx-full                      1.9.3-1ubuntu1.2
  nginx-light                     1.9.3-1ubuntu1.2

Ubuntu 14.04 LTS:
  nginx-core                      1.4.6-1ubuntu3.5
  nginx-extras                    1.4.6-1ubuntu3.5
  nginx-full                      1.4.6-1ubuntu3.5
  nginx-light                     1.4.6-1ubuntu3.5

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

References:
  http://www.ubuntu.com/usn/usn-2991-1
  CVE-2016-4450

Package Information:
  https://launchpad.net/ubuntu/+source/nginx/1.10.0-0ubuntu0.16.04.2
  https://launchpad.net/ubuntu/+source/nginx/1.9.3-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/nginx/1.4.6-1ubuntu3.5


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