The processstat function in Memcached 1.2.8 discloses memory-allocation statistics in response to a stats malloc command, which allows remote attackers to obtain potentially sensitive information by sending this command to the daemon's TCP port.

Multiple integer signedness errors in the (1) processbinsaslauth, (2) processbincompletesaslauth, (3) processbinupdate, and (4) processbinappendprepend functions in Memcached 1.4.5 and earlier allow remote attackers to cause a denial of service (crash) via a large body length value in a packet.