==========================================================================
Ubuntu Security Notice USN-3963-1
May 01, 2019

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

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

– Ubuntu 19.04
– Ubuntu 18.10
– Ubuntu 18.04 LTS

Summary:

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

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

Details:

It was discovered that Memcached incorrectly handled certain lru command
messages. 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 19.04:
memcached 1.5.10-0ubuntu1.19.04.1

Ubuntu 18.10:
memcached 1.5.10-0ubuntu1.18.10.1

Ubuntu 18.04 LTS:
memcached 1.5.6-0ubuntu1.1

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

References:
https://usn.ubuntu.com/usn/usn-3963-1
CVE-2019-11596

Package Information:
https://launchpad.net/ubuntu/+source/memcached/1.5.10-0ubuntu1.19.04.1
https://launchpad.net/ubuntu/+source/memcached/1.5.10-0ubuntu1.18.10.1
https://launchpad.net/ubuntu/+source/memcached/1.5.6-0ubuntu1.1

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