USN-3120-1: Memcached vulnerabilities

2 November 2016

memcached vulnerabilities

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

  • Ubuntu 16.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


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

Software Description

  • memcached - high-performance memory object caching system


Aleksandar Nikolic discovered that Memcached incorrectly handled certain malformed commands. A remote attacker could use this issue to cause Memcached to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 16.10
memcached - 1.4.25-2ubuntu2.1
Ubuntu 16.04 LTS
memcached - 1.4.25-2ubuntu1.2
Ubuntu 14.04 LTS
memcached - 1.4.14-0ubuntu9.1
Ubuntu 12.04 LTS
memcached - 1.4.13-0ubuntu2.2

To update your system, please follow these instructions:

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