During an audit of the memcached v1.2.7 source code, it was found that the software divulges its stack, heap, and shared library memory locations. This effectively disables address space layout randomization (ASLR) protection, making potential buffer overflow vulnerabilities much easier to exploit.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/77085/memcache-bypass.txt
Source: https://packetstormsecurity.com/files/77085/Memcached-ASLR-Bypass-Weakness.html