memcached is vulnerable to data corruption attacks. The vulnerabiltiy exists as memcached version prior to 1.4.37 contains an Integer Overflow vulnerability in items.c:item_free() that can result in data corruption and deadlocks due to items existing in hash table being reused from free list. This attack appear to be exploitable via network connectivity to the memcached service.
access.redhat.com/errata/RHSA-2018:2290
access.redhat.com/security/updates/classification/#moderate
github.com/memcached/memcached/commit/a8c4a82787b8b6c256d61bd5c42fb7f92d1bae00
github.com/memcached/memcached/issues/271
github.com/memcached/memcached/wiki/ReleaseNotes1437
lists.debian.org/debian-lts-announce/2018/03/msg00031.html
usn.ubuntu.com/3601-1/
www.debian.org/security/2018/dsa-4218