USN-3601-1: Memcached vulnerability

19 March 2018

memcached vulnerability

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

  • Ubuntu 17.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS


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

Software Description

  • memcached - high-performance memory object caching system


It was discovered that Memcached incorrectly handled reusing certain items. A remote attacker could possibly use this issue to cause Memcached 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 17.10
memcached - 1.4.33-1ubuntu3.3
Ubuntu 16.04 LTS
memcached - 1.4.25-2ubuntu1.4
Ubuntu 14.04 LTS
memcached - 1.4.14-0ubuntu9.3

To update your system, please follow these instructions:

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