Log Message:
memcached: updated to 1.6.8

Memcached 1.6.8

Small security related release. A remote crash is possible if UDP is enabled. \ 
The remediation is to upgrade or disable UDP. The crash was introduced in the \ 
1.6 series.

UDP has not been enabled by default for years and it has no authentication or \ 
security, so it most users should not have a high exposure to this bug.

This also includes two minor fixes.

Fixes
* Improve opening of authentication file
* Fix over-freeing in internal object cache
* udp: crash fix when receiving multi-packet uploads