Several security issues were fixed in Memcached.
Stefan Bucur discovered that Memcached incorrectly handled certain large body lengths. A remote attacker could use this issue to cause Memcached to crash, resulting in a denial of service. (CVE-2011-4971)
13 January 2014
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Memcached.
Stefan Bucur discovered that Memcached incorrectly handled certain large body lengths. A remote attacker could use this issue to cause Memcached to crash, resulting in a denial of service. (CVE-2011-4971)
Jeremy Sowden discovered that Memcached incorrectly handled logging certain details when the -vv option was used. An attacker could use this issue to cause Memcached to crash, resulting in a denial of service. (CVE-2013-0179)
It was discovered that Memcached incorrectly handled SASL authentication. A remote attacker could use this issue to bypass SASL authentication completely. This issue only affected Ubuntu 12.10, Ubuntu 13.04 and Ubuntu 13.10. (CVE-2013-7239)
The problem can be corrected by updating your system to the following package versions:
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.