USN-4099-1: nginx vulnerabilities

15 August 2019

nginx vulnerabilities

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

  • Ubuntu 19.04
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS


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

Software Description

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


Jonathan Looney discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to consume resources, leading to a denial of service.

Update instructions

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

Ubuntu 19.04
nginx-common - 1.15.9-0ubuntu1.1
nginx-core - 1.15.9-0ubuntu1.1
nginx-extras - 1.15.9-0ubuntu1.1
nginx-full - 1.15.9-0ubuntu1.1
nginx-light - 1.15.9-0ubuntu1.1
Ubuntu 18.04 LTS
nginx-common - 1.14.0-0ubuntu1.4
nginx-core - 1.14.0-0ubuntu1.4
nginx-extras - 1.14.0-0ubuntu1.4
nginx-full - 1.14.0-0ubuntu1.4
nginx-light - 1.14.0-0ubuntu1.4
Ubuntu 16.04 LTS
nginx-common - 1.10.3-0ubuntu0.16.04.4
nginx-core - 1.10.3-0ubuntu0.16.04.4
nginx-extras - 1.10.3-0ubuntu0.16.04.4
nginx-full - 1.10.3-0ubuntu0.16.04.4
nginx-light - 1.10.3-0ubuntu0.16.04.4

To update your system, please follow these instructions:

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