memcached: Denial of Service -- Remote/Unauthenticated

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.1514
                    USN-3963-1: Memcached vulnerability
                                2 May 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           memcached
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-11596  

Original Bulletin: 
   https://usn.ubuntu.com/3963-1/

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running memcached check for an updated version of the software for 
         their operating system.

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USN-3963-1: Memcached vulnerability
1 May 2019

memcached vulnerability

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

  o Ubuntu 19.04
  o Ubuntu 18.10
  o Ubuntu 18.04 LTS

Summary

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

Software Description

  o 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

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o CVE-2019-11596

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