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AUSCERT External Security Bulletin Redistribution
6 March 2018
AusCERT Security Bulletin Summary
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2018-1000115 CVE-2017-9951
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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Ubuntu Security Notice USN-3588-1
March 05, 2018
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 17.10
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS
Several security issues were fixed in Memcached.
- - memcached: high-performance memory object caching system
Daniel Shapira discovered an integer overflow issue in Memcached. A remote
attacker could use this to cause a denial of service (daemon crash).
It was discovered that Memcached listened to UDP by default. A remote
attacker could use this as part of a distributed denial of service attack.
The problem can be corrected by updating your system to the following
Ubuntu 16.04 LTS:
Ubuntu 14.04 LTS:
In general, a standard system update will make all the necessary changes.
Please note that after applying this update, Memcached will no longer
listen to UDP by default. If UDP service is desired, please add
'-U 11211' to /etc/memcached.conf and restart the memcached service.
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