[USN-4125-1] Memcached vulnerability

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-4125-1
September 09, 2019

memcached vulnerability
==========================================================================

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

- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Memcached could be made to expose sensitive information if it
received a specially crafted UNIX socket.

Software Description:
- memcached: high-performance memory object caching system

Details:

It was discovered that Memcached incorrectly handled certain UNIX sockets.
An attacker could possibly use this issue to access sensitive information.

Update instructions:

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

Ubuntu 19.04:
  memcached                       1.5.10-0ubuntu1.19.04.2

Ubuntu 18.04 LTS:
  memcached                       1.5.6-0ubuntu1.2

Ubuntu 16.04 LTS:
  memcached                       1.4.25-2ubuntu1.5

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

References:
  https://usn.ubuntu.com/4125-1
  CVE-2019-15026

Package Information:
  https://launchpad.net/ubuntu/+source/memcached/1.5.10-0ubuntu1.19.04.2
  https://launchpad.net/ubuntu/+source/memcached/1.5.6-0ubuntu1.2
  https://launchpad.net/ubuntu/+source/memcached/1.4.25-2ubuntu1.5
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