USN-2991-1: nginx vulnerability

Ubuntu Security Notice USN-2991-1

2nd June, 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 version:

Ubuntu 16.04 LTS:

nginx-extras 1.10.0-0ubuntu0.16.04.2

nginx-full 1.10.0-0ubuntu0.16.04.2

nginx-core 1.10.0-0ubuntu0.16.04.2

nginx-light 1.10.0-0ubuntu0.16.04.2

Ubuntu 15.10:

nginx-extras 1.9.3-1ubuntu1.2

nginx-full 1.9.3-1ubuntu1.2

nginx-core 1.9.3-1ubuntu1.2

nginx-light 1.9.3-1ubuntu1.2

Ubuntu 14.04 LTS:

nginx-extras 1.4.6-1ubuntu3.5

nginx-full 1.4.6-1ubuntu3.5

nginx-core 1.4.6-1ubuntu3.5

nginx-light 1.4.6-1ubuntu3.5

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2016-4450